Structural Bolts

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Structural bolts are heavy hex bolts constructed of medium carbon steel. They have a flat bearing surface, washer face and chamfered point. They are commonly used in heavy-duty structural steel joints.

APPROVED VENDOR -

1/2"-13 Coarse Black Oxide Grade A325 Type 1 Structural Bolts

StyleModelThread StyleTypeGrip SizeMaterialHead HeightThread DirectionHardnessTensile StrengthPrice (inc. VAT)Pkg. Qty.
AU04006.050.0125Fully ThreadedStructural Bolt With Nut-Steel5/16"Right HandRockwell C25120000 psi£23.141
BU04006.050.0275Partially ThreadedStructural Bolt With Nut1 3/4"Steel5/16"Right HandRockwell C25120000 psi£36.431
BU04006.050.0300Partially ThreadedStructural Bolt With Nut2"Steel5/16"Right HandRockwell C25120000 psi£96.2325
CU04005.050.0325Partially ThreadedStructural Bolt2 1/4"Steel5/16"Right HandRockwell C25120000 psi£51.7225
DU04005.050.0225Partially ThreadedStructural Bolt1 1/4"Steel5/16"Right HandRockwell C25120000 psi£54.971
EU04005.050.0150Partially ThreadedStructural Bolt1/2"Steel5/16"Right HandRockwell C25120000 psi£39.531
FU04005.050.0125Partially ThreadedStructural Bolt1/4"Steel5/16"Right HandRockwell C25120000 psi£24.841
CU04005.050.0350Partially ThreadedStructural Bolt2 1/2"Steel5/16"Right HandRockwell C25120000 psi£54.841
GU04005.050.0275Partially ThreadedStructural Bolt1 3/4"Steel5/16"Right HandRockwell C25120000 psi£75.7425
HU04005.050.0175Partially ThreadedStructural Bolt3/4"Steel5/16"Right HandRockwell C25120000 psi£31.791
BU04006.050.0400Partially ThreadedStructural Bolt With Nut3"Steel5/16"Right HandRockwell C25120000 psi£41.211
BU04006.050.0350Partially ThreadedStructural Bolt With Nut2 1/2"Steel5/16"Right HandRockwell C25120000 psi£27.921
IU04006.050.0250Partially ThreadedStructural Bolt With Nut1 1/2"Steel5/16"Right HandRockwell C25120000 psi£35.531
BU04006.050.0325Partially ThreadedStructural Bolt With Nut2 1/4"Steel5/16"Right HandRockwell C25120000 psi£28.281
IU04006.050.0225Partially ThreadedStructural Bolt With Nut1 1/4"Steel5/16"Right HandRockwell C25120000 psi£114.4625
IU04006.050.0200Partially ThreadedStructural Bolt With Nut1"Steel5/16"Right HandRockwell C25120000 psi£139.661
IU04006.050.0175Partially ThreadedStructural Bolt With Nut3/4"Steel5/16"Right HandRockwell C25120000 psi£83.561
JU04006.050.0150Partially ThreadedStructural Bolt With Nut1/2"Steel5/16"Right HandRockwell C25120000 psi£131.861
CU04005.050.0375Partially ThreadedStructural Bolt2 3/4"Steel5/16"Right HandRockwell C25120000 psi£51.471
KU04005.050.0300Partially ThreadedStructural Bolt2"Steel5/16"Right HandRockwell C25120000 psi£80.461
LU04005.050.0250Partially ThreadedStructural Bolt1 1/2"Steel5/16"Right HandRockwell C25120000 psi£43.6725
HU04005.050.0200Partially ThreadedStructural Bolt1"Steel5/16"Right HandRockwell C25120000 psi£52.391
BU04006.050.0375Partially ThreadedStructural Bolt With Nut2 3/4"Steel5/16"Right HandRockwell C25120000 psi£30.701
CU04005.050.0400Partially ThreadedStructural Bolt3"Steel5/16"Right HandRockwell C25120000 psi£52.9625
DISCO -

Hex Structural Bolt

StyleModelHead HeightTypeHead Dia.Head WidthDrive SizeWasher Outside Dia.MaterialThread StylePrice (inc. VAT)Pkg. Qty.
A10097PK4 mmBody Bolt10 mm10 mm10 mm18.5 mmSteelFully Threaded£41.2850
B9064PK4.7 mmCA Body9.5 mm15 mm15 mm28 mmSteelFully Threaded£28.511
FABORY -

5/8"-11 Coarse Hot Dipped Galvanized Grade A394 Type 1 Structural Bolts

StyleModelThread StyleHead HeightGrip SizeHead Dia.MaterialTypeThread DirectionHardnessPrice (inc. VAT)Pkg. Qty.
AU08441.062.0200Fully Threaded27/64"-15/16"SteelTower BoltRight HandRockwell C25£23.651
AU08441.062.0150Fully Threaded27/64"-15/16"SteelTower BoltRight HandRockwell C25£19.791
AU08441.062.0175Fully Threaded27/64"-15/16"SteelTower BoltRight HandRockwell C25£20.461
BU08441.062.0225Partially Threaded27/64"3/4"15/16"SteelTower BoltRight HandRockwell C25£25.961
BU08441.062.0300Partially Threaded1/2"1 1/2"1 1/8"SteelTower BoltRight HandRockwell C25£29.5010
BU08441.062.0250Partially Threaded27/64"1"15/16"SteelTower BoltRight HandRockwell C25£19.611
BU08441.062.0275Partially Threaded27/64"1 1/4"15/16"SteelTower BoltRight HandRockwell C25£28.9910
FABORY -

3/4"-10 Coarse Hot Dipped Galvanized Grade A394 Type 1 Structural Bolts

StyleModelThread StyleHead HeightGrip SizeHead Dia.MaterialTypeThread DirectionHardnessPrice (inc. VAT)Pkg. Qty.
AU08441.075.0150Fully Threaded1/2"-1 1/8"SteelTower BoltRight HandRockwell C25£31.931
AU08441.075.0225Fully Threaded1/2"-1 1/8"SteelTower BoltRight HandRockwell C25£34.751
AU08441.075.0175Fully Threaded1/2"-1 1/8"SteelTower BoltRight HandRockwell C25£32.7610
AU08441.075.0200Fully Threaded1/2"-1 1/8"SteelTower BoltRight HandRockwell C25£34.861
BU08441.075.0250Partially Threaded1/2"3/4"1 1/8"SteelTower BoltRight HandRockwell C25£37.641
BU08441.075.0350Partially Threaded1/2"1 3/4"1 1/8"SteelTower BoltRight HandRockwell C25£49.581
BU08441.075.0325Partially Threaded27/64"1 1/2"15/16"SteelTower BoltRight HandRockwell C25£46.661
BU08441.075.0275Partially Threaded1/2"1"1 1/8"SteelTower BoltRight HandRockwell C25£43.341
BU08441.075.0300Partially Threaded1/2"1 1/4"1 1/8"SteelTower BoltRight HandRockwell C25£43.781
DISCO -

M8 x 1.25 Coarse Black Organic Structural Bolts

StyleModelMaterialThread StyleHead HeightTypeHead Dia.Head WidthDrive TypeHead TypePrice (inc. VAT)Pkg. Qty.
A9147PKSteelFully Threaded4.7 mmCA Body9.5 mm13 mmExternal HexHex Socket£22.611
B5697PKSteelFully Threaded4.7 mmCA Body9.5 mm13 mmExternal HexHex Socket£17.0925
DISCO -

M8 x 1.25 Coarse Structural Bolts

StyleModelMaterialThread StyleHead HeightTypeHead Dia.Head WidthDrive TypeHead TypePrice (inc. VAT)Pkg. Qty.
A1013PKSteelFully Threaded4.7 mmCA Body9.5 mm13 mmExternal HexHex Socket£21.9225
B5688PKSteelFully Threaded4.7 mmCA Body9.5 mm13 mmExternal HexHex Socket£26.8625
DISCO -

M6 x 1 Coarse Black Organic Structural Bolts

StyleModelThread StyleMaterialHead HeightTypeHead Dia.Head WidthDrive TypeHead TypePrice (inc. VAT)
A5686PKFully ThreadedSteel4.7 mmCA Body9.5 mm10 mmExternal HexHex Socket£20.92
B5682PKPartially ThreadedSteel4.7 mmCA Body9.5 mm10 mmExternal HexHex Socket£21.94
FABORY -

5/8"-11 Coarse Hot Dipped Galvanized Grade A394 Type 0 Structural Bolts

StyleModelThread StyleHead HeightGrip SizeHead Dia.MaterialTypeThread DirectionHardnessPrice (inc. VAT)Pkg. Qty.
AU08440.062.0175Fully Threaded27/64"-15/16"SteelTower BoltRight HandRockwell B80£19.181
AU08440.062.0150Fully Threaded27/64"-15/16"SteelTower BoltRight HandRockwell B80£17.5710
AU08440.062.0200Fully Threaded27/64"-15/16"SteelTower BoltRight HandRockwell B80£19.5510
BU08440.062.0300Partially Threaded1/2"1 1/2"1 1/8"SteelTower BoltRight HandRockwell B80£30.181
BU08440.062.0250Partially Threaded27/64"1"15/16"SteelTower BoltRight HandRockwell B80£25.901
BU08440.062.0225Partially Threaded27/64"3/4"15/16"SteelTower BoltRight HandRockwell B80£22.8410
StyleModelThread StyleMaterialHead HeightTypeThread DirectionHardnessTensile StrengthThread FitPrice (inc. VAT)Pkg. Qty.
AU08440.075.0150Fully ThreadedSteel1/2"Tower BoltRight HandRockwell B8074000 psiClass 2A£30.181
AU08440.075.0225Fully ThreadedSteel1/2"Tower BoltRight HandRockwell B8074000 psiClass 2A£30.771
AU08440.075.0200Fully ThreadedSteel1/2"Tower BoltRight HandRockwell B8074000 psiClass 2A£30.9510
AU08440.075.0250Partially ThreadedSteel1/2"Tower BoltRight HandRockwell B8074000 psiClass 2A£33.411
GRAINGER -

M24 x 3 Coarse Hot Dipped Galvanized Class 10.9 Structural Bolts

StyleModelGrip SizeMaterialThread StyleHead HeightTypeThread DirectionHardnessTensile StrengthPrice (inc. VAT)
AM04210.240.005011 mmSteelPartially Threaded15 mmStructural BoltRight HandRockwell C32-C39145038 psi£427.98
BM04210.240.006021 mmSteelPartially Threaded15 mmStructural BoltRight HandRockwell C32-C39145038 psi£576.76
CM04210.240.007031 mmSteelPartially Threaded15 mmStructural BoltRight HandRockwell C32-C39145038 psi£595.34
CM04210.240.007536 mmSteelPartially Threaded15 mmStructural BoltRight HandRockwell C32-C39145038 psi£618.04
CM04210.240.008041 mmSteelPartially Threaded15 mmStructural BoltRight HandRockwell C32-C39145038 psi£599.81
CM04210.240.008546 mmSteelPartially Threaded15 mmStructural BoltRight HandRockwell C32-C39145038 psi£672.07
DM04210.240.009051 mmSteelPartially Threaded15 mmStructural BoltRight HandRockwell C32-C39145038 psi£647.02
DM04210.240.009556 mmSteelPartially Threaded15 mmStructural BoltRight HandRockwell C32-C39145038 psi£701.17
EM04210.240.010061 mmSteelPartially Threaded15 mmStructural BoltRight HandRockwell C32-C39145038 psi£695.09
EM04210.240.010566 mmSteelPartially Threaded15 mmStructural BoltRight HandRockwell C32-C39145038 psi£780.82
FM04210.240.011071 mmSteelPartially Threaded15 mmStructural BoltRight HandRockwell C32-C39145038 psi£758.62
FM04210.240.011576 mmSteelPartially Threaded15 mmStructural BoltRight HandRockwell C32-C39145038 psi£831.41
FM04210.240.012081 mmSteelPartially Threaded15 mmStructural BoltRight HandRockwell C32-C39145038 psi£644.29
FM04210.240.012586 mmSteelPartially Threaded15 mmStructural BoltRight HandRockwell C32-C39145038 psi£755.02
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1 1/4"-7 Coarse Hot Dipped Galvanized Grade A325 Type 1 Structural Bolts

StyleModelTypeHardnessGrip SizeMaterialThread StyleHead HeightThread DirectionTensile StrengthPrice (inc. VAT)Pkg. Qty.
AU04210.125.0300Structural BoltRockwell C191"SteelPartially Threaded25/32"Right Hand120000 psi£100.191
BU04210.125.0500Structural BoltRockwell C193"SteelPartially Threaded25/32"Right Hand120000 psi£143.091
CU04210.125.0550Structural BoltRockwell C193 1/2"SteelPartially Threaded25/32"Right Hand120000 psi£154.681
DU04210.125.0450Structural BoltRockwell C192 1/2"SteelPartially Threaded25/32"Right Hand120000 psi£125.751
AU04210.125.0325Structural BoltRockwell C191 1/4"SteelPartially Threaded25/32"Right Hand120000 psi£99.671
EU04210.125.0400Structural BoltRockwell C192"SteelPartially Threaded25/32"Right Hand120000 psi£113.901
FU04210.125.0650Structural BoltRockwell C194 1/2"SteelPartially Threaded25/32"Right Hand120000 psi£182.391
GU04210.125.0800Structural BoltRockwell C196"SteelPartially Threaded25/32"Right Hand120000 psi£150.721
FU04210.125.0700Structural BoltRockwell C195"SteelPartially Threaded25/32"Right Hand120000 psi£192.731
FU04210.125.0600Structural BoltRockwell C194"SteelPartially Threaded25/32"Right Hand120000 psi£152.651
HU04210.125.0350Structural BoltRockwell C191 1/2"SteelPartially Threaded25/32"Right Hand120000 psi£104.721
IU04210.125.0425Structural BoltRockwell C192 1/4"SteelPartially Threaded25/32"Right Hand120000 psi£121.181
JU04211.125.0550Structural Bolt With NutRockwell C253 1/2"SteelPartially Threaded25/32"Right Hand120000 psi£178.431
JU04211.125.0500Structural Bolt With NutRockwell C253"SteelPartially Threaded25/32"Right Hand120000 psi£170.091
KU04211.125.0300Structural Bolt With NutRockwell C191"SteelPartially Threaded25/32"Right Hand120000 psi£121.745
LU04211.125.0325Structural Bolt With NutRockwell C191 1/4"SteelPartially Threaded25/32"Right Hand120000 psi£109.631
MU04211.125.0425Structural Bolt With NutRockwell C192 1/4"SteelPartially Threaded25/32"Right Hand120000 psi£63.651
JU04211.125.0600Structural Bolt With NutRockwell C254"SteelPartially Threaded25/32"Right Hand120000 psi£81.465
MU04211.125.0450Structural Bolt With NutRockwell C192 1/2"SteelPartially Threaded25/32"Right Hand120000 psi£61.841
LU04211.125.0400Structural Bolt With NutRockwell C192"SteelPartially Threaded25/32"Right Hand120000 psi£160.405
LU04211.125.0350Structural Bolt With NutRockwell C191 1/2"SteelPartially Threaded25/32"Right Hand120000 psi£151.255
JU04211.125.0800Structural Bolt With NutRockwell C256"SteelPartially Threaded25/32"Right Hand120000 psi£97.011
DISCO -

M6 x 1 Coarse Phosphate Structural Bolts

StyleModelWasher Outside Dia.MaterialThread StyleHead HeightTypeHead Dia.Head WidthDrive TypePrice (inc. VAT)Pkg. Qty.
A5692PK17 mmSteelFully Threaded4.7 mmCA Body9.5 mm10 mmExternal Hex£33.7950
B5684PK17 mmSteelFully Threaded4.7 mmCA Body9.5 mm10 mmExternal Hex£29.881
C5690PK24 mmSteelFully Threaded4.7 mmCA Body9.5 mm10 mmExternal Hex£26.8350
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5/8"-11 Coarse Black Oxide Grade A325 Type 1 Structural Bolts

StyleModelThread StyleTypeGrip SizeMaterialHead HeightThread DirectionHardnessTensile StrengthPrice (inc. VAT)Pkg. Qty.
AU04006.062.0125Fully ThreadedStructural Bolt With Nut-Steel25/64"Right HandRockwell C25120000 psi£38.1610
BU04006.062.0450Partially ThreadedStructural Bolt With Nut3 1/4"Steel25/64"Right HandRockwell C25120000 psi£23.341
CU04006.062.0325Partially ThreadedStructural Bolt With Nut2"Steel25/64"Right HandRockwell C25120000 psi£21.321
DU04005.062.0150Partially ThreadedStructural Bolt1/4"Steel25/64"Right HandRockwell C25120000 psi£24.861
BU04006.062.0500Partially ThreadedStructural Bolt With Nut3 3/4"Steel25/64"Right HandRockwell C25120000 psi£29.141
EU04005.062.0300Partially ThreadedStructural Bolt1 3/4"Steel25/64"Right HandRockwell C25120000 psi£39.0410
FU04005.062.0250Partially ThreadedStructural Bolt1 1/4"Steel25/64"Right HandRockwell C25120000 psi£39.181
CU04006.062.0400Partially ThreadedStructural Bolt With Nut2 3/4"Steel25/64"Right HandRockwell C25120000 psi£26.531
CU04006.062.0375Partially ThreadedStructural Bolt With Nut2 1/2"Steel25/64"Right HandRockwell C25120000 psi£22.251
GU04006.062.0200Partially ThreadedStructural Bolt With Nut3/4"Steel25/64"Right HandRockwell C25120000 psi£22.751
HU04005.062.0375Partially ThreadedStructural Bolt2 1/2"Steel25/64"Right HandRockwell C25120000 psi£43.391
HU04005.062.0325Partially ThreadedStructural Bolt2"Steel25/64"Right HandRockwell C25120000 psi£42.371
IU04005.062.0275Partially ThreadedStructural Bolt1 1/2"Steel25/64"Right HandRockwell C25120000 psi£27.0710
JU04005.062.0200Partially ThreadedStructural Bolt3/4"Steel25/64"Right HandRockwell C25120000 psi£30.741
KU04005.062.0175Partially ThreadedStructural Bolt1/2"Steel25/64"Right HandRockwell C25120000 psi£36.161
GU04006.062.0150Partially ThreadedStructural Bolt With Nut1/4"Steel25/64"Right HandRockwell C25120000 psi£17.781
LU04006.062.0225Partially ThreadedStructural Bolt With Nut1"Steel25/64"Right HandRockwell C25120000 psi£23.721
BU04006.062.0550Partially ThreadedStructural Bolt With Nut4 1/4"Steel25/64"Right HandRockwell C25120000 psi£22.801
MU04005.062.0450Partially ThreadedStructural Bolt3 1/4"Steel25/64"Right HandRockwell C25120000 psi£46.181
NU04005.062.0500Partially ThreadedStructural Bolt3 3/4"Steel25/64"Right HandRockwell C25120000 psi£60.431
BU04006.062.0600Partially ThreadedStructural Bolt With Nut4 3/4"Steel25/64"Right HandRockwell C25120000 psi£25.911
CU04006.062.0350Partially ThreadedStructural Bolt With Nut2 1/4"Steel25/64"Right HandRockwell C25120000 psi£36.231
OU04006.062.0300Partially ThreadedStructural Bolt With Nut1 3/4"Steel25/64"Right HandRockwell C25120000 psi£56.8910
OU04006.062.0275Partially ThreadedStructural Bolt With Nut1 1/2"Steel25/64"Right HandRockwell C25120000 psi£18.701
LU04006.062.0250Partially ThreadedStructural Bolt With Nut1 1/4"Steel25/64"Right HandRockwell C25120000 psi£52.9810
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3/4"-10 Coarse Black Oxide Grade A325 Type 1 Structural Bolts

StyleModelTypeGrip SizeMaterialThread StyleHead HeightThread DirectionHardnessTensile StrengthPrice (inc. VAT)Pkg. Qty.
AU04005.075.0750Structural Bolt6 1/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£115.191
BU04005.075.0325Structural Bolt1 7/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£67.551
CU04005.075.0700Structural Bolt5 5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£92.951
DU04005.075.0650Structural Bolt5 1/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£121.441
EU04005.075.0600Structural Bolt4 5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£107.531
FU04005.075.0525Structural Bolt3 7/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£41.291
GU04005.075.0450Structural Bolt3 1/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£86.541
HU04005.075.0375Structural Bolt2 3/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£80.321
IU04005.075.0300Structural Bolt1 5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£25.921
JU04005.075.0250Structural Bolt1 1/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£33.4910
KU04005.075.0175Structural Bolt3/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£52.721
LB04005.075.0500Structural Bolt3 5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi-30
RFQ
MU04005.075.0550Structural Bolt4 1/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£100.581
NU04005.075.0475Structural Bolt3 3/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£62.3010
OU04005.075.0400Structural Bolt2 5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£70.991
PU04005.075.0200Structural Bolt5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£48.161
QU04005.075.0800Structural Bolt6 5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£121.521
RU04005.075.0225Structural Bolt7/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£51.721
SU04005.075.0275Structural Bolt1 3/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£58.391
HU04005.075.0350Structural Bolt2 1/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£69.921
TU04005.075.0425Structural Bolt2 7/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£89.291
FU04005.075.0500Structural Bolt3 5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£98.241
UU04005.075.0150Structural Bolt1/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£50.211
VU04006.075.0175Structural Bolt With Nut3/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£17.661
VU04006.075.0225Structural Bolt With Nut7/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£22.825
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7/8"-9 Coarse Black Oxide Grade A325 Type 1 Structural Bolts

StyleModelTypeGrip SizeHead Dia.MaterialThread StyleHead HeightThread DirectionHardnessPrice (inc. VAT)Pkg. Qty.
AB04005.087.0275Structural Bolt1 1/4"1 7/16"SteelPartially Threaded35/64"Right HandRockwell C25-35
RFQ
BU04005.087.0400Structural Bolt2 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£51.021
CU04005.087.0225Structural Bolt3/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£44.451
DU04005.087.0425Structural Bolt2 3/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£58.551
EU04005.087.0750Structural Bolt6"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£108.021
FU04005.087.0800Structural Bolt6 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£72.471
GU04005.087.0650Structural Bolt5"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£94.821
HU04005.087.0600Structural Bolt4 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£83.211
IU04005.087.0550Structural Bolt4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£78.231
JU04005.087.0500Structural Bolt3 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£40.161
DU04005.087.0450Structural Bolt3"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£60.341
BU04005.087.0375Structural Bolt2 1/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£60.711
KU04005.087.0350Structural Bolt2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£45.345
LU04005.087.0325Structural Bolt1 3/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£54.191
MU04005.087.0300Structural Bolt1 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£20.651
AU04005.087.0275Structural Bolt1 1/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£28.905
AU04005.087.0250Structural Bolt1"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£38.351
NU04005.087.0200Structural Bolt1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£42.111
NB04005.087.0200Structural Bolt1/2"1 7/16"SteelPartially Threaded35/64"Right HandRockwell C25£80.6340
OU04005.087.0475Structural Bolt3 1/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£35.321
EU04005.087.0700Structural Bolt5 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£99.411
PU04006.087.0600Structural Bolt With Nut4 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£36.021
QU04006.087.0225Structural Bolt With Nut3/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£16.161
RB04006.087.0425Structural Bolt With Nut2 3/4"1 7/16"SteelPartially Threaded35/64"Right HandRockwell C25-20
RFQ
SU04006.087.0800Structural Bolt With Nut6 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£41.601
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1"-8 Coarse Black Oxide Grade A325 Type 1 Structural Bolts

StyleModelTypeGrip SizeMaterialThread StyleHead HeightThread DirectionHardnessTensile StrengthPrice (inc. VAT)Pkg. Qty.
AU04005.100.0200Structural Bolt1/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£48.481
BU04005.100.0400Structural Bolt2 1/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£71.401
CU04005.100.0225Structural Bolt1/2"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£58.371
DU04005.100.0250Structural Bolt3/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£60.961
DU04005.100.0275Structural Bolt1"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£42.621
EU04005.100.0350Structural Bolt1 3/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£65.441
FU04005.100.0375Structural Bolt2"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£75.601
GU04005.100.0450Structural Bolt2 3/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£87.121
HU04005.100.0800Structural Bolt6 1/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£138.601
IU04005.100.0425Structural Bolt2 1/2"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£83.921
JU04005.100.0325Structural Bolt1 1/2"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£68.051
DU04005.100.0300Structural Bolt1 1/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£70.381
GU04005.100.0500Structural Bolt3 1/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£16.615
KU04005.100.0550Structural Bolt3 3/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£97.361
LU04005.100.0600Structural Bolt4 1/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£100.791
MU04005.100.0650Structural Bolt4 3/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£111.541
NU04005.100.0700Structural Bolt5 1/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£95.631
NU04005.100.0750Structural Bolt5 3/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£130.551
OU04006.100.0800Structural Bolt With Nut6 1/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£57.861
PB04006.100.0250Structural Bolt With Nut3/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi-20
RFQ
QU04006.100.0275Structural Bolt With Nut1"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£102.241
RU04006.100.0550Structural Bolt With Nut3 3/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£33.941
SU04006.100.0750Structural Bolt With Nut5 3/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£48.161
TU04006.100.0650Structural Bolt With Nut4 3/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£51.081
QU04006.100.0300Structural Bolt With Nut1 1/4"SteelPartially Threaded39/64"Right HandRockwell C25120000 psi£43.561
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1 1/8"-7 Coarse Black Oxide Grade A325 Type 1 Structural Bolts

StyleModelTypeHardnessGrip SizeMaterialThread StyleHead HeightThread DirectionTensile StrengthPrice (inc. VAT)Pkg. Qty.
AU04005.112.0350Structural BoltRockwell C191 1/2"SteelPartially Threaded11/16"Right Hand120000 psi£79.151
BU04005.112.0300Structural BoltRockwell C191"SteelPartially Threaded11/16"Right Hand120000 psi£74.341
CU04005.112.0600Structural BoltRockwell C194"SteelPartially Threaded11/16"Right Hand120000 psi£92.091
DU04005.112.0450Structural BoltRockwell C192 1/2"SteelPartially Threaded11/16"Right Hand120000 psi£84.311
DU04005.112.0425Structural BoltRockwell C192 1/4"SteelPartially Threaded11/16"Right Hand120000 psi£88.341
EU04005.112.0400Structural BoltRockwell C192"SteelPartially Threaded11/16"Right Hand120000 psi£72.541
FU04005.112.1000Structural BoltRockwell C198"SteelPartially Threaded11/16"Right Hand120000 psi£147.791
GU04005.112.0800Structural BoltRockwell C196"SteelPartially Threaded11/16"Right Hand120000 psi£105.551
HU04005.112.0500Structural BoltRockwell C193"SteelPartially Threaded11/16"Right Hand120000 psi£93.081
IU04005.112.0325Structural BoltRockwell C191 1/4"SteelPartially Threaded11/16"Right Hand120000 psi£77.451
JU04005.112.0700Structural BoltRockwell C195"SteelPartially Threaded11/16"Right Hand120000 psi£132.231
JU04005.112.0650Structural BoltRockwell C194 1/2"SteelPartially Threaded11/16"Right Hand120000 psi£117.011
HU04005.112.0550Structural BoltRockwell C193 1/2"SteelPartially Threaded11/16"Right Hand120000 psi£107.031
FU04005.112.0900Structural BoltRockwell C257"SteelPartially Threaded11/16"Right Hand120000 psi£129.881
KU04006.112.0800Structural Bolt With NutRockwell C196"SteelPartially Threaded11/16"Right Hand120000 psi£71.841
KU04006.112.1000Structural Bolt With NutRockwell C258"SteelPartially Threaded11/16"Right Hand120000 psi£79.661
LU04006.112.0600Structural Bolt With NutRockwell C194"SteelPartially Threaded11/16"Right Hand120000 psi£53.411
LU04006.112.0550Structural Bolt With NutRockwell C193 1/2"SteelPartially Threaded11/16"Right Hand120000 psi£33.501
LU04006.112.0425Structural Bolt With NutRockwell C192 1/4"SteelPartially Threaded11/16"Right Hand120000 psi£43.281
MU04006.112.0350Structural Bolt With NutRockwell C191 1/2"SteelPartially Threaded11/16"Right Hand120000 psi£132.405
NU04006.112.0650Structural Bolt With NutRockwell C194 1/2"SteelPartially Threaded11/16"Right Hand120000 psi£40.501
OU04006.112.0300Structural Bolt With NutRockwell C191"SteelPartially Threaded11/16"Right Hand120000 psi£42.431
KU04006.112.0900Structural Bolt With NutRockwell C257"SteelPartially Threaded11/16"Right Hand120000 psi£51.045
OU04006.112.0325Structural Bolt With NutRockwell C191 1/4"SteelPartially Threaded11/16"Right Hand120000 psi£28.301
MU04006.112.0400Structural Bolt With NutRockwell C192"SteelPartially Threaded11/16"Right Hand120000 psi£49.031
APPROVED VENDOR -

1 1/4"-7 Coarse Black Oxide Grade A325 Type 1 Structural Bolts

StyleModelTypeGrip SizeMaterialThread StyleHead HeightThread DirectionHardnessTensile StrengthPrice (inc. VAT)Pkg. Qty.
AU04005.125.0325Structural Bolt1 1/4"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£87.281
BU04005.125.0450Structural Bolt2 1/2"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£115.881
CU04005.125.0300Structural Bolt1"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£82.841
DU04005.125.0800Structural Bolt6"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£151.451
EU04005.125.0700Structural Bolt5"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£156.891
EU04005.125.0650Structural Bolt4 1/2"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£161.331
BU04005.125.0500Structural Bolt3"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£103.601
FU04005.125.0550Structural Bolt3 1/2"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£110.421
GU04005.125.0600Structural Bolt4"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£122.961
BU04005.125.0425Structural Bolt2 1/4"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£105.641
HU04005.125.0400Structural Bolt2"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£99.291
AU04005.125.0350Structural Bolt1 1/2"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£91.081
IU04006.125.0350Structural Bolt With Nut1 1/2"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£169.045
IU04006.125.0325Structural Bolt With Nut1 1/4"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£86.321
JU04006.125.0400Structural Bolt With Nut2"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£138.205
KU04006.125.0425Structural Bolt With Nut2 1/4"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£64.321
LU04006.125.0700Structural Bolt With Nut5"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£58.261
LU04006.125.0650Structural Bolt With Nut4 1/2"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£53.601
KU04006.125.0600Structural Bolt With Nut4"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£121.735
KU04006.125.0550Structural Bolt With Nut3 1/2"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£65.185
KU04006.125.0450Structural Bolt With Nut2 1/2"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£172.455
MU04006.125.0800Structural Bolt With Nut6"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£81.791
KU04006.125.0500Structural Bolt With Nut3"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£155.151
IU04006.125.0300Structural Bolt With Nut1"SteelPartially Threaded25/32"Right HandRockwell C19120000 psi£68.281
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5/8"-11 Coarse Hot Dipped Galvanized Grade A325 Type 1 Structural Bolts

StyleModelThread StyleTypeGrip SizeMaterialHead HeightThread DirectionHardnessTensile StrengthPrice (inc. VAT)Pkg. Qty.
AU04211.062.0125Fully ThreadedStructural Bolt With Nut-Steel25/64"Right HandRockwell C25120000 psi£35.201
BU04210.062.0125Fully ThreadedStructural Bolt-Steel25/64"Right HandRockwell C25120000 psi£8.3610
CU04211.062.0175Partially ThreadedStructural Bolt With Nut1/2"Steel25/64"Right HandRockwell C25120000 psi£32.801
DB04210.062.0225Partially ThreadedStructural Bolt1"Steel25/64"Right HandRockwell C25120000 psi-80
RFQ
EB04211.062.0350Partially ThreadedStructural Bolt With Nut2 1/4"Steel25/64"Right HandRockwell C25120000 psi£152.2350
CU04211.062.0200Partially ThreadedStructural Bolt With Nut3/4"Steel25/64"Right HandRockwell C25120000 psi£62.3210
EU04211.062.0325Partially ThreadedStructural Bolt With Nut2"Steel25/64"Right HandRockwell C25120000 psi£26.271
FU04211.062.0275Partially ThreadedStructural Bolt With Nut1 1/2"Steel25/64"Right HandRockwell C25120000 psi£30.581
EU04211.062.0350Partially ThreadedStructural Bolt With Nut2 1/4"Steel25/64"Right HandRockwell C25120000 psi£36.641
GU04210.062.0500Partially ThreadedStructural Bolt3 3/4"Steel25/64"Right HandRockwell C25120000 psi£79.741
DU04210.062.0250Partially ThreadedStructural Bolt1 1/4"Steel25/64"Right HandRockwell C25120000 psi£70.781
HU04210.062.0300Partially ThreadedStructural Bolt1 3/4"Steel25/64"Right HandRockwell C25120000 psi£53.631
IU04210.062.0350Partially ThreadedStructural Bolt2 1/4"Steel25/64"Right HandRockwell C25120000 psi£65.291
JU04211.062.0500Partially ThreadedStructural Bolt With Nut3 3/4"Steel25/64"Right HandRockwell C25120000 psi£41.151
KU04210.062.0275Partially ThreadedStructural Bolt1 1/2"Steel25/64"Right HandRockwell C25120000 psi£55.581
LU04210.062.0325Partially ThreadedStructural Bolt2"Steel25/64"Right HandRockwell C25120000 psi£69.171
MU04210.062.0375Partially ThreadedStructural Bolt2 1/2"Steel25/64"Right HandRockwell C25120000 psi£39.981
GU04210.062.0550Partially ThreadedStructural Bolt4 1/4"Steel25/64"Right HandRockwell C25120000 psi£61.7910
DU04210.062.0225Partially ThreadedStructural Bolt1"Steel25/64"Right HandRockwell C25120000 psi£50.101
GU04210.062.0450Partially ThreadedStructural Bolt3 1/4"Steel25/64"Right HandRockwell C25120000 psi£73.861
NU04210.062.0400Partially ThreadedStructural Bolt2 3/4"Steel25/64"Right HandRockwell C25120000 psi£67.391
FU04211.062.0250Partially ThreadedStructural Bolt With Nut1 1/4"Steel25/64"Right HandRockwell C25120000 psi£38.361
EU04211.062.0375Partially ThreadedStructural Bolt With Nut2 1/2"Steel25/64"Right HandRockwell C25120000 psi£63.671
EU04211.062.0400Partially ThreadedStructural Bolt With Nut2 3/4"Steel25/64"Right HandRockwell C25120000 psi£30.531
JU04211.062.0550Partially ThreadedStructural Bolt With Nut4 1/4"Steel25/64"Right HandRockwell C25120000 psi£33.341
-

3/4"-10 Coarse Hot Dipped Galvanized Grade A325 Type 1 Structural Bolts

StyleModelTypeGrip SizeMaterialThread StyleHead HeightThread DirectionHardnessTensile StrengthPrice (inc. VAT)Pkg. Qty.
AU04210.075.0550Structural Bolt4 1/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£32.421
BU04210.075.0200Structural Bolt5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£65.171
CU04210.075.0375Structural Bolt2 3/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£96.601
DU04210.075.0450Structural Bolt3 1/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£33.961
EU04210.075.0175Structural Bolt3/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£34.8510
FU04210.075.0150Structural Bolt1/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£60.351
DU04210.075.0500Structural Bolt3 5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£70.401
GU04210.075.0650Structural Bolt5 1/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£122.561
GU04210.075.0700Structural Bolt5 5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£126.891
HU04210.075.0250Structural Bolt1 1/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£75.131
IU04210.075.0600Structural Bolt4 5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£130.821
JU04210.075.0350Structural Bolt2 1/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£94.691
GU04210.075.0750Structural Bolt6 1/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£140.341
AU04210.075.0525Structural Bolt3 7/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£81.501
DU04210.075.0475Structural Bolt3 3/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£70.661
KU04210.075.0425Structural Bolt2 7/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£68.5010
LU04210.075.0325Structural Bolt1 7/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£87.861
MU04210.075.0275Structural Bolt1 3/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£79.641
NU04210.075.0800Structural Bolt6 5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£147.071
OU04210.075.0225Structural Bolt7/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£69.121
PU04210.075.0300Structural Bolt1 5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£84.051
QU04210.075.0400Structural Bolt2 5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£100.551
RU04211.075.0200Structural Bolt With Nut5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£14.811
SB04211.075.0400Structural Bolt With Nut2 5/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi-30
RFQ
TU04211.075.0525Structural Bolt With Nut3 7/8"SteelPartially Threaded15/32"Right HandRockwell C25120000 psi£22.451
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7/8"-9 Coarse Hot Dipped Galvanized Grade A325 Type 1 Structural Bolts

StyleModelTypeGrip SizeHead Dia.MaterialThread StyleHead HeightThread DirectionHardnessPrice (inc. VAT)Pkg. Qty.
AU04210.087.0800Structural Bolt6 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£78.341
BU04210.087.0200Structural Bolt1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£50.461
CU04210.087.0600Structural Bolt4 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£83.751
DU04210.087.0375Structural Bolt2 1/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£64.421
EU04210.087.0325Structural Bolt1 3/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£63.471
FU04210.087.0250Structural Bolt1"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£47.831
GU04210.087.0750Structural Bolt6"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£73.881
HU04210.087.0475Structural Bolt3 1/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£70.751
IU04210.087.0450Structural Bolt3"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£56.241
JU04210.087.0400Structural Bolt2 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£73.721
KU04210.087.0350Structural Bolt2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£67.251
LB04210.087.0300Structural Bolt1 1/2"1 7/16"SteelPartially Threaded35/64"Right HandRockwell C25-35
RFQ
MU04210.087.0275Structural Bolt1 1/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£58.791
NB04210.087.0225Structural Bolt3/4"1 7/16"SteelPartially Threaded35/64"Right HandRockwell C25-40
RFQ
OU04210.087.0550Structural Bolt4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£70.141
NU04210.087.0225Structural Bolt3/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£52.641
PU04210.087.0300Structural Bolt1 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£62.181
QU04210.087.0425Structural Bolt2 3/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£35.771
OU04210.087.0500Structural Bolt3 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£60.661
RU04210.087.0700Structural Bolt5 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£87.471
SU04210.087.0650Structural Bolt5"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£88.841
TU04211.087.0700Structural Bolt With Nut5 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£42.441
UU04211.087.0375Structural Bolt With Nut2 1/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£18.971
VU04211.087.0325Structural Bolt With Nut1 3/4"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£30.521
WU04211.087.0300Structural Bolt With Nut1 1/2"1.437"SteelPartially Threaded35/64"Right HandRockwell C25£31.211
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Structural Bolts

Structural bolts are heavy hex bolts constructed of medium carbon steel. They have a flat bearing surface, washer face and chamfered point. They are commonly used in heavy-duty structural steel joints.

Frequently Asked Questions

What are the different bolting methods?

  • Nut Turning: Turn the nut or bolt of a fastener assembly at a particular angle based on the length and diameter of the fastener, while ensuring that the surface does not rotate.
  • Calibrated Wrench: Apply an average torque value based on daily testing of your representative fastener assembly samples. They are based on the exact configuration of power supplies & tools under conditions as close together as possible, within one day or less.

What is ASTM A325 standard?

The American Society for Testing and Materials (ASTM) is in charge of establishing standards for various tools and industries. Although these standards are voluntary, most fabricators follow them as it increases customer trust. The A325 standard, in addition to ASTM A563 and A194, applies to heavy hex structural bolts. This standard specifies the mechanical properties of bolts with diameters ranging from.5 to 1.5 inches. A325M, the equivalent metric standard, defines mechanical properties for bolts having M12 to M36 sizes. The ASTM A325 designation was replaced in 2016 by ASTM F3125. However, the markings on bolt heads remain the same to avoid confusion.

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