Lock Washers

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Lock washers are used for creating tight assemblies with ordinary fasteners. Raptor Supplies offers a wide range of lock washers from brands like Unistrut, ...Read more

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Delta Protect Steel Wedge Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceColorPrice (inc. VAT)Pkg. Qty.
A1206#50.13"7/25"Rockwell C460.071"-0.01" to +0.01"Silver£206.381
B1512#50.13"7/25"Rockwell C460.071"-0.01" to +0.01"Silver£26.541
C1514#60.15"0.35"Rockwell C460.071"-0.01" to +0.01"Silver£26.2120
D1513#60.15"0.3"Rockwell C460.071"-0.01" to +0.01"Silver£26.2120
E1208#60.15"0.35"Rockwell C460.071"-0.01" to +0.01"Silver£220.761
F1207#60.15"0.3"Rockwell C460.071"-0.01" to +0.01"Silver£218.631
G1515#80.17"0.3"Rockwell C460.071"-0.01" to +0.01"Silver£45.121
H1516#80.17"0.35"Rockwell C460.071"-0.01" to +0.01"Silver£45.121
I1212#80.17"0.35"Rockwell C460.071"-0.01" to +0.01"Silver£221.761
J1209#80.17"0.3"Rockwell C460.071"-0.01" to +0.01"Silver£170.411
K1517#100.21"0.35"Rockwell C460.071"-0.01" to +0.01"Silver£26.171
L1518#100.21"0.43"Rockwell C460.071"-0.01" to +0.01"Silver£45.121
M1218#100.21"0.43"Rockwell C460.071"-0.01" to +0.01"Silver£221.811
N1213#100.21"0.35"Rockwell C460.071"-0.01" to +0.01"Silver£170.411
OGDP-1131 1/2"1.523"2.196"Rockwell C40-C550.256"-Silver£358.9125
P15581 1/2"1.59"2.3"Rockwell C460.26"-0.02" to +0.02"Silver£23.521
Q28061 1/2"1.59"2.3"Rockwell C460.26"-0.02" to +0.02"Silver£506.211
R27421 1/4"1.35"2.3"Rockwell C460.26"-0.02" to +0.02"Silver£505.571
SGDP-1121 1/4"1.275"1 7/8"Rockwell C40-C550.265"-Silver£234.6425
T15541 1/4"1.35"1.91"Rockwell C460.23"-0.02" to +0.02"Silver£18.441
U15551 1/4"1.35"2.3"Rockwell C460.26"-0.02" to +0.02"Silver£23.521
V27171 1/4"1.35"1.91"Rockwell C460.26"-0.02" to +0.02"Silver£372.711
W15531 1/8"1 6/25"2.3"Rockwell C460.26"-0.02" to +0.02"Silver£23.521
XGDP-1111 1/8"1.14"1.715"Rockwell C40-C550.256"-Silver£200.771
Y15521 1/8"1 6/25"1.85"Rockwell C460.23"-0.02" to +0.02"Silver£16.561
NORD-LOCK -

Plain Grade 254 SMO Stainless Steel Wedge Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceColorPrice (inc. VAT)Pkg. Qty.
A1560#50.13"7/25"Rockwell C520.09"-0.01" to +0.01"Silver£37.181
B1561#60.15"0.3"Rockwell C520.09"-0.01" to +0.01"Silver£45.8310
C1562#60.15"0.35"Rockwell C520.09"-0.01" to +0.01"Silver£38.941
D1563#80.17"0.3"Rockwell C520.09"-0.01" to +0.01"Silver£41.561
E1564#80.17"0.35"Rockwell C520.09"-0.01" to +0.01"Silver£37.621
F1565#100.21"0.35"Rockwell C520.09"-0.01" to +0.01"Silver£34.521
G1566#100.21"0.43"Rockwell C520.09"-0.01" to +0.01"Silver£49.3810
H16041 1/2"1.59"2.3"Rockwell C520.22"-0.02" to +0.02"Silver£99.401
I28341 1/4"1.35"1.91"Rockwell C520.22"-0.02" to +0.02"Silver£72.681
J16001 1/8"1 6/25"1.85"Rockwell C520.22"-0.02" to +0.02"Silver£57.531
K28351 3/8"1.47"2.17"Rockwell C520.22"-0.02" to +0.02"Silver£82.901
L15971"1.1"1.91"Rockwell C520.13"-0.01" to +0.01"Silver£53.181
M15961"1.1"1.54"Rockwell 520.13"-0.01" to +0.01"Silver£56.951
N15811/2"0.53"1"Rockwell C520.13"-0.01" to +0.01"Silver£58.981
O15801/2"0.53"0.77"Rockwell 522/25"-0.01" to +0.01"Silver£54.181
P15701/4"7/25"0.53"Rockwell C520.09"-0.01" to +0.01"Silver£46.3710
Q15691/4"7/25"0.45"Rockwell 520.09"-0.01" to +0.01"Silver£40.981
R15893/4"0.79"1.54"Rockwell C520.13"-0.01" to +0.01"Silver£54.481
S15883/4"0.79"1.21"Rockwell 520.13"-0.01" to +0.01"Silver£39.583
T15733/8"0.41"0.65"Rockwell 522/25"-0.01" to +0.01"Silver£61.2710
U15743/8"0.41"0.83"Rockwell C522/25"-0.01" to +0.01"Silver£52.016
V15855/8"0.67"1.21"Rockwell C520.1"-0.01" to +0.01"Silver£56.471
W15845/8"0.67"1"Rockwell 523/25"-0.01" to +0.01"Silver£50.511
X15725/16"0.34"0.65"Rockwell C522/25"-0.01" to +0.01"Silver£58.2410
Y15715/16"0.34"0.53"Rockwell 522/25"-0.01" to +0.01"Silver£40.431
FABORY -

Galvanized Spring Steel Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessColorTypeMaterialFinishPrice (inc. VAT)Pkg. Qty.
AM37025.060.0001M66.1 mm11.8 mm1.6 mmGraySplit LockSpring SteelGalvanized£10.66100
BL37025.080.0001M88.1 mm14.8 mm2 mmGraySplit LockSpring SteelGalvanized£741.556300
AM37025.080.0001M88.1 mm14.8 mm2 mmGraySplit LockSpring SteelGalvanized£15.13100
AM37025.100.0001M1010.2 mm18.1 mm2.2 mmGraySplit LockSpring SteelGalvanized£75.23100
AM37025.120.0001M1212.2 mm21.1 mm2.5 mmGraySplit LockSpring SteelGalvanized£28.64100
AM37025.160.0001M1616.2 mm27.4 mm3.5 mmGraySplit LockSpring SteelGalvanized£34.1650
BL37025.160.0001M1616.2 mm27.4 mm3.5 mmGraySplit LockSpring SteelGalvanized£622.751150
AM37025.180.0001M1818.2 mm29.4 mm3.5 mmGraySplit LockSpring SteelGalvanized£51.0050
AM37025.200.0001M2020.2 mm33.6 mm4 mmGraySplit LockSpring SteelGalvanized£54.0850
AM37025.220.0001M2222.5 mm35.9 mm4 mmGraySplit LockSpring SteelGalvanized£54.7425
AM37025.240.0001M2424.5 mm40 mm5 mmGraySplit LockSpring SteelGalvanized£37.3725
AM37025.270.0001M2727.5 mm43 mm5 mmGraySplit LockSpring SteelGalvanized£30.6510
AM37025.300.0001M3030.5 mm48.2 mm6 mmGraySplit LockSpring SteelGalvanized£42.835
CL37025.300.0001M3030.5 mm48.2 mm6 mmGraySplit LockSpring SteelGalvanized£1,129.88220
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Plain Steel Internal Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessClassColorPrice (inc. VAT)Pkg. Qty.
AB37320.050.0001#40.512"22/25"-0.055"--£4,031.556750
BB37320.062.0001#616/25"1.1"-0.059"--£13,338.135000
CB37320.025.0001#60.256"1/2"-0.035"--£8,670.0037000
DB37320.031.0001#88/25"0.59"-1/25"--£8,492.0117200
BB37320.075.0001#100.768"1 6/25"-0.071"--£13,794.632970
EB37320.037.0001#100.384"0.7"-0.042"--£8,674.9613150
FU37320.050.00011/2"0.512"22/25"Rockwell C40-C500.055"Not Applicable-£20.261
GU37320.025.00011/4"0.256"1/2"Rockwell C40-C500.035"Not Applicable-£27.851
HU37320.075.00013/4"0.768"1 6/25"Rockwell C40-C500.071"Not Applicable-£58.271
IU37320.037.00013/8"0.384"1.7"Rockwell C40-C500.042"Not Applicable-£41.631
JU37320.062.00015/8"16/25"1.1"Rockwell C40-C500.059"Not Applicable-£33.491
KU37320.031.00015/16"8/25"0.59"Rockwell C40-C501/25"Not Applicable-£61.971
BL37320.030.0001M33.2 mm6 mm-0.4 mm-Silver£4,670.1090000
LL37320.040.0001M44.3 mm8 mm-0.5 mm-Silver£2,146.9550000
ML37320.050.0001M55.3 mm10 mm-0.6 mm-Silver£3,287.4250000
NL37320.060.0001M66.4 mm11 mm-0.7 mm-Silver£2,212.5540000
OL37320.080.0001M88.4 mm15 mm-0.8 mm-Silver£1,619.2118100
PL37320.100.0001M1010.5 mm18 mm-0.9 mm-Silver£2,147.9811100
QM37320.120.0001M1213 mm20.5 mmRockwell C35-C421 mmNot Applicable-£15.591
APPROVED VENDOR -

Plain Grade 316 Stainless Steel External Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceClassColorPrice (inc. VAT)
AU55460.009.0001#30.102"0.23"Rockwell B850.013"0.01" to 0.016"Not ApplicableSilver£35.17
BU55460.011.0001#40.115"0.245"-0.012"-Not Applicable-£18.61
CU55460.012.0001#50.129"0.27"-0.014"-Not Applicable-£77.71
DU55460.013.0001#60.141"0.305"-0.016"-Not Applicable-£95.30
EU55460.016.0001#80.168"0.365"Rockwell B880.018"-0.0025" to +0.0025"Not Applicable-£11.69
FU55460.019.0001#100.195"0.395"Rockwell B880.018"-0.003" to +0.003"Not Applicable-£17.56
APPROVED VENDOR -

Plain Grade 410 Stainless Steel Countersunk External Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessClassTypeMaterialGradePrice (inc. VAT)
AU51501.008.0001#2---Not ApplicableCountersunk External Tooth LockStainless SteelGrade 410£9.54
BU51501.011.0001#40.113"0.213"0.015"Not ApplicableCountersunk External Tooth LockStainless SteelGrade 410£37.85
CU51501.013.0001#60.14"0.289"0.017"Not ApplicableCountersunk External Tooth LockStainless SteelGrade 410£16.27
DU51501.016.0001#80.167"0.322"0.017"Not ApplicableCountersunk External Tooth LockStainless SteelGrade 410£16.94
EU51501.019.0001#100.195"0.354"0.02"Not ApplicableCountersunk External Tooth LockStainless SteelGrade 410£23.84
FU51501.025.00011/4"0.255"0.454"0.02"Not ApplicableCountersunk External Tooth LockStainless SteelGrade 410£32.27
GU51501.037.00013/8"0.383"0.765"0.028"Not ApplicableCountersunk External Tooth LockStainless SteelGrade 410£164.71
HU51501.031.00015/16"0.318"0.599"0.023"Not ApplicableCountersunk External Tooth LockStainless SteelGrade 410£150.84
APPROVED VENDOR -

Plain Grade 18-8 Stainless Steel External Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceClassPrice (inc. VAT)
AU51460.011.0001#40.115"0.245"-0.012"-Not Applicable£3.84
BU51460.013.0001#60.141"0.305"Rockwell C45-C500.016"0.016" to 0.022"Not Applicable£6.95
CU51460.016.0001#80.168"0.365"Rockwell C350.018"-Not Applicable£2.16
DU51460.019.0001#100.195"0.395"Rockwell C350.018"-Not Applicable£2.96
EU51460.050.00011/2"0.513"22/25"Rockwell C350.037"-Not Applicable£6.34
FU51460.025.00011/4"0.256"0.494"Rockwell C20-C450.023"0.023" to 0.028"Not Applicable£11.64
GU51460.037.00013/8"0.384"0.67"Rockwell C350.032"-Not Applicable£9.46
HU51460.031.00015/16"8/25"0.588"Rockwell C350.028"-Not Applicable£3.24
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Hot Dipped Galvanized Steel Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessClassHardnessTypeMaterialPrice (inc. VAT)Pkg. Qty.
AU37025.150.00011 1/2"1.504"2.419"3/8"Not Applicable-Split LockSteel£22.721
BU37025.175.00011 3/4"1.758"2.679"0.389"Not Applicable-Split LockSteel£24.655
CU37025.137.00011 3/8"1.379"2.219"0.344"Not Applicable-Split LockSteel£17.955
DU37025.250.00012 1/2"2.512"3.471"11/25"Not Applicable-Split LockSteel£45.535
EU37025.200.00012"2.008"2.936"0.422"Not Applicable-Split LockSteel£35.775
FU37025.043.00017/16"11/25"0.77"0.109"-Rockwell C38-C46Split LockSteel£4.031
FOREVERBOLT -

NL-19 Grade 18-8 Stainless Steel Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness ToleranceHardnessColorPrice (inc. VAT)Pkg. Qty.
AFBLKW6P100#60.141"1/4"0.031"-0.005" to +0.005"Rockwell C35Silver£48.36100
BFBLKW8P100#81.67"0.293"1/25"-0.005" to +0.005"Rockwell C35Silver£49.10100
CFBLKW10P100#100.193"0.334"0.047"-0.005" to +0.005"Rockwell C35Silver£50.18100
DFBLKW1P101"1.003"1.652"1/4"-0.005" to +0.005"Rockwell C35Silver£61.7010
EFBLKW12P501/2"0.502"0.869"1/8"-0.005" to +0.005"Rockwell C35Silver£63.6750
FFBLKW14P1001/4"0.252"0.487"1/16"-0.005" to +0.005"Rockwell C35Silver£54.49100
GFBLKW34P253/4"0.753"1.264"3/16"-0.005" to +0.005"Rockwell C35Silver£64.4625
HFBLK38P1003/8"0.377"17/25"3/32"-0.005" to +0.005"Rockwell C35Silver£79.37100
IFBLKW58P255/8"0.628"1.072"0.156"-0.005" to +0.005"Rockwell C35Silver£46.0825
JFBLKW516P1005/16"0.314"0.583"0.0781"-0.005" to +0.005"Rockwell C35Silver£75.05100
KFBLKW78P107/8"0.878"1.455"0.219"-0.005" to +0.005"Rockwell C35Silver£46.1910
LFBLKW716P507/16"11/25"0.776"0.109"-0.005" to +0.005"Rockwell C35Silver£47.6450
MFBLKWM3P100M33.1 mm6.2 mm0.8 mm-0.2 mm to +0.2 mmRockwell C35Silver£48.73100
NFBLKWM4P100M44.1 mm7.6 mm0.9 mm-0.2 mm to +0.2 mmRockwell C35Silver£49.08100
OFBLKWM5P100M55.1 mm9.2 mm1.2 mm-0.2 mm to +0.2 mmRockwell C35Silver£50.17100
PFBLKWM6P100M66.1 mm11.8 mm1.6 mm-0.2 mm to +0.2 mmRockwell C35Silver£66.04100
QFBLKWM8P100M88.1 mm14.8 mm2 mm-0.2 mm to +0.2 mmRockwell C35Silver£70.36100
RFBLKWM10P50M1010.2 mm18.1 mm2.2 mm-0.2 mm to +0.2 mmRockwell C35Silver£45.4750
SFBLKWM12P50M1212.2 mm24.1 mm2.5 mm-0.2 mm to +0.2 mmRockwell C35Silver£50.9050
TFBLKWM16P25M1616.2 mm27.4 mm3.5 mm-0.2 mm to +0.2 mmRockwell C35Silver£75.7825
UFBLKWM20P25M2020.2 mm33.6 mm4 mm-0.2 mm to +0.2 mmRockwell C35Silver£66.4125
FABORY -

Plain Stainless Steel Internal Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceColorPrice (inc. VAT)Pkg. Qty.
AB53462.008.0001#20.089"0.172"-0.01"--£2,903.1550000
BB51462.011.0001#20.115"0.245"Rockwell C45-C500.012"0.012" to 0.018"-£1,588.4250000
CB53462.025.0001#20.256"0.46"-0.023"--£1,310.9025000
DB53462.031.0001#38/25"0.594"-0.028"--£1,559.5517200
EB53462.009.0001#30.102"0.215"-0.01"--£3,289.7450000
FB53462.050.0001#30.512"0.867"Rockwell C400.037"-0.004" to +0.004"-£1,628.795000
GB51462.013.0001#40.141"0.275"-0.016"--£2,621.8150000
HB51462.075.0001#40.769"1.22"Rockwell C45-C500.047"0.047" to 0.055"-£2,645.102500
IB53462.011.0001#40.115"0.245"Rockwell C40-C500.012"0.012" to 0.018"-£2,591.8650000
JB53462.062.0001#416/25"1.045"Rockwell C400.042"-0.004" to +0.004"-£3,045.015000
KB53462.037.0001#40.384"0.67"-0.032"--£1,616.5213150
LB53462.075.0001#50.769"1.22"Rockwell C400.047"-0.004" to +0.004"-£2,186.092500
MB51462.037.0001#60.384"0.67"Rockwell C45-C500.032"0.032" to 0.04"-£2,014.7713150
NB53462.013.0001#60.141"0.275"Rockwell C40-C500.016"0.016" to 0.022"-£1,966.3650000
OB51462.016.0001#60.168"0.325"Rockwell C45-C500.018"0.018" to 0.023"-£2,972.2250000
PB55462.016.0001#80.168"0.325"-0.018"--£8,341.0450000
QB53462.016.0001#80.168"0.325"Rockwell C40-C500.018"0.018" to 0.023"-£2,831.4950000
RB51462.019.0001#80.195"0.365"Rockwell C45-C500.018"0.018" to 0.024"-£2,492.7750000
SB53462.019.0001#100.195"0.365"Rockwell C40-C500.018"0.018" to 0.024"-£3,475.9650000
TB51462.050.0001#100.512"0.867"Rockwell C45-C500.037"0.037" to 0.045"-£2,338.305000
OB51462.025.0001#100.256"0.46"Rockwell C20-C450.023"0.023" to 0.028"-£1,447.4625000
UB53462.021.0001#120.221"0.394"Rockwell C40-C500.02"0.02" to 0.027"-£1,194.2425000
OB55462.025.00011/4"0.256"0.46"Rockwell B880.023"-0.0025" to +0.0025"-£14,139.7525000
VB55462.037.00013/8"0.384"0.67"-0.032"--£1,612.9913150
OB55462.031.00015/16"8/25"0.594"-0.028"--£12,471.8017200
APPROVED VENDOR -

Plain Grade 410 Stainless Steel Internal Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness ToleranceClassHardnessPrice (inc. VAT)
AU53462.008.0001#20.089"0.172"0.01"-Not ApplicableRockwell C40£7.83
BU53462.009.0001#30.102"0.215"0.01"-Not ApplicableRockwell C40£3.82
CU53462.011.0001#40.115"0.245"0.012"0.012" to 0.018"Not ApplicableRockwell C40£3.13
DU53462.013.0001#60.141"0.275"0.016"0.016" to 0.022"Not ApplicableRockwell C40£6.37
EU53462.016.0001#80.168"0.325"0.018"0.018" to 0.023"Not ApplicableRockwell C40£9.70
FU53462.019.0001#100.195"0.365"0.018"0.018" to 0.024"Not ApplicableRockwell C40£4.08
GU53462.021.0001#120.221"0.394"0.02"0.02" to 0.027"Not ApplicableRockwell C40£4.75
HU53462.050.00011/2"0.512"0.867"0.037"-0.004" to +0.004"Not ApplicableRockwell C40£3.77
IU53462.025.00011/4"0.256"0.46"0.023"-Not ApplicableRockwell C40£5.58
JU53462.075.00013/4"0.769"1.22"0.047"-0.004" to +0.004"Not ApplicableRockwell C40£5.11
KU53462.037.00013/8"0.384"0.67"0.032"-Not ApplicableRockwell C40£14.39
LU53462.062.00015/8"16/25"1.045"0.042"-0.004" to +0.004"Not ApplicableRockwell C40£29.10
MU53462.031.00015/16"8/25"0.594"0.028"-Not ApplicableRockwell C40£10.61
NU53462.043.00017/16"0.448"0.74"0.032"-Not ApplicableRockwell C40£14.92
FABORY -

Plain Stainless Steel External Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessColorTypeMaterialFinishPrice (inc. VAT)Pkg. Qty.
AB55460.012.0001#50.129"0.27"0.014"-External Tooth LockStainless SteelPlain£66,053.1750000
BB51460.031.0001#68/25"0.588"0.028"-External Tooth LockStainless SteelPlain£1,876.6925000
CB53460.062.0001#80.641"1.045"0.042"-External Tooth LockStainless SteelPlain£5,540.135000
DB51460.037.0001#80.384"0.67"0.032"-External Tooth LockStainless SteelPlain£2,070.4314450
EB51460.016.0001#80.168"0.365"0.018"-External Tooth LockStainless SteelPlain£2,171.8450000
FB53460.031.0001#88/25"0.588"0.028"-External Tooth LockStainless SteelPlain£2,539.8825000
GB51460.019.0001#100.195"0.395"0.018"-External Tooth LockStainless SteelPlain£5,557.0550000
HB53460.075.0001#100.768"1.22"0.047"-External Tooth LockStainless SteelPlain£2,051.452500
IB51460.050.0001#100.513"22/25"0.037"-External Tooth LockStainless SteelPlain£1,734.225000
JL51460.030.0001M33.2 mm6 mm0.4 mmSilverExternal Tooth LockStainless SteelPlain£2,528.1750000
KL51460.040.0001M44.3 mm8 mm0.5 mmSilverExternal Tooth LockStainless SteelPlain£1,164.6050000
LL51460.050.0001M55.3 mm10 mm0.6 mmSilverExternal Tooth LockStainless SteelPlain£955.6025000
ML51460.051.0001M55.1 mm9 mm0.5 mmSilverExternal Tooth LockStainless SteelPlain£3,685.8325000
NL51460.060.0001M66.4 mm11 mm0.7 mmSilverExternal Tooth LockStainless SteelPlain£2,993.7925000
OL51460.080.0001M88.4 mm15 mm0.8 mmSilverExternal Tooth LockStainless SteelPlain£1,771.3615850
PL51460.082.0001M88.2 mm14 mm0.8 mmSilverExternal Tooth LockStainless SteelPlain£1,904.6015850
QL51460.100.0001M1010.5 mm18 mm0.9 mmSilverExternal Tooth LockStainless SteelPlain£884.258300
RL51460.120.0001M1213 mm20.5 mm1 mmSilverExternal Tooth LockStainless SteelPlain£1,167.766650
SL51460.160.0001M1617 mm26 mm1.2 mmSilverExternal Tooth LockStainless SteelPlain£948.313120
TL51460.200.0001M2021 mm33 mm1.4 mmSilverExternal Tooth LockStainless SteelPlain£1,679.761665
UL51460.240.0001M2425 mm38 mm1.5 mmSilverExternal Tooth LockStainless SteelPlain£1,249.961250
StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessHardnessColorTypeMaterialPrice (inc. VAT)Pkg. Qty.
AU37061.150.00011 1/2"1.504"2.419"3/8"-GraySplit LockAlloy Steel£18.281
AU37061.125.00011 1/4"1.254"2.036"5/16"-GraySplit LockAlloy Steel£10.861
AU37061.112.00011 1/8"1.129"1.847"0.2813"Rockwell C38GraySplit LockAlloy Steel£20.591
AU37061.137.00011 3/8"1.379"2.219"0.3438"Rockwell C38GraySplit LockAlloy Steel£72.341
AU37061.100.00011"1.003"1.656"1/4"-GraySplit LockAlloy Steel£6.461
AU37061.050.00011/2"0.502"0.869"1/8"-GraySplit LockAlloy Steel£4.691
AU37061.025.00011/4"0.252"0.487"1/16"-GraySplit LockAlloy Steel£4.241
AU37061.075.00013/4"0.753"1.265"3/16"-GraySplit LockAlloy Steel£5.831
AU37061.037.00013/8"0.377"17/25"0.0938"-GraySplit LockAlloy Steel£5.231
AB37061.037.00013/8"0.377"17/25"0.0938"-GraySplit LockAlloy Steel£230.113
AU37061.062.00015/8"0.628"1.073"0.156"-GraySplit LockAlloy Steel£5.041
AU37061.031.00015/16"0.314"0.583"0.0781"-GraySplit LockAlloy Steel£5.721
AU37061.087.00017/8"0.878"1.459"0.2188"-GraySplit LockAlloy Steel£4.901
AU37061.043.00017/16"11/25"0.77"0.1094"-GraySplit LockAlloy Steel£4.261
AU37061.056.00019/16"0.564"0.965"9/64"-GraySplit LockAlloy Steel£6.181
StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness ToleranceClassHardnessPrice (inc. VAT)
AM37200.030.0001M33.1 mm5.6 mm1 mm-Not ApplicableRockwell C44-C51£6.76
AM37000.030.0001M33.1 mm6.2 mm0.8 mm-0.1 mm to +0.1 mmNot ApplicableRockwell C44-C51£4.22
AM37000.035.0001M3.53.6 mm6.7 mm0.8 mm-0.1 mm to +0.1 mmNot ApplicableRockwell C44-C51£4.31
AM37000.040.0001M44.1 mm7.6 mm0.9 mm-0.1 mm to +0.1 mmNot ApplicableRockwell C44-C51£2.77
AM37200.040.0001M44.1 mm7 mm1.2 mm-Not ApplicableRockwell C44-C51£4.51
AM37000.050.0001M55.1 mm9.2 mm1.2 mm-0.1 mm to +0.1 mmNot ApplicableRockwell C44-C51£1.86
AM37200.050.0001M55.1 mm8.8 mm1.6 mm-Not ApplicableRockwell C44-C51£8.17
AM37000.060.0001M66.1 mm11.8 mm1.6 mm-0.1 mm to +0.1 mmNot ApplicableRockwell C44-C51£3.20
AM37200.060.0001M66.1 mm9.9 mm1.6 mm-Not ApplicableRockwell C44-C51£3.24
AM37000.080.0001M88.1 mm14.8 mm2 mm-0.1 mm to +0.1 mmNot ApplicableRockwell C44-C51£4.61
AM37200.080.0001M88.1 mm12.7 mm2 mm-Not ApplicableRockwell C44-C51£5.54
AM37000.100.0001M1010.2 mm18.1 mm2.2 mm-0.15 mm to +0.15 mmNot ApplicableRockwell C44-C51£5.29
AM37200.100.0001M1010.2 mm16 mm2.5 mm-0.127 mm to +0.127 mmNot ApplicableRockwell C44-C51£4.93
StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness ToleranceClassHardnessPrice (inc. VAT)Pkg. Qty.
ALWIS-100-100P#101/5"0.334"0.047"0.047" to 0.062"Not ApplicableRockwell C38-C46£1.74100
ALWIS0250-100P1/4"0.26"0.487"1/16"0.062" to 0.109"Not ApplicableRockwell C38-C46£1.91100
ALWIS0370-100P3/8"0.385"17/25"3/32"0.094" to 0.141"Not ApplicableRockwell C38-C46£4.61100
StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness ToleranceHardnessTypeMaterialPrice (inc. VAT)Pkg. Qty.
AUST187437M33.5 mm5.5 mm1 mm-0.1 mm to +0.1 mmRockwell C44-C51Split LockSteel£8.77100
AUST187438M44.5 mm6.5 mm1.2 mm-0.1 mm to +0.1 mmRockwell C44-C51Split LockSteel£8.531
AUST187439M55.5 mm8.5 mm1.6 mm-0.1 mm to +0.1 mmRockwell C44-C51Split LockSteel£9.121
AUST187440M66.5 mm9.5 mm1.6 mm-0.1 mm to +0.1 mmRockwell C44-C51Split LockSteel£9.31100
AUST182830M66.5 mm11.3 mm1.7 mm-0.1 mm to +0.1 mmRockwell C44-C51Split LockSteel£9.84100
AUST182831M88.5 mm14.5 mm2 mm-0.1 mm to +0.1 mmRockwell C44-C51Split LockSteel£10.401
AUST187441M89 mm12.5 mm2 mm-0.1 mm to +0.1 mmRockwell C44-C51Split LockSteel£11.17100
AUST187442M1010.5 mm15.5 mm2.5 mm-0.15 mm to +0.15 mmRockwell C44-C51Split LockSteel£20.86100
AUST182832M1010.5 mm17.5 mm2.3 mm-0.15 mm to +0.15 mmRockwell C44-C51Split LockSteel£19.42100
AUST182833M1213 mm20 mm2.5 mm-0.15 mm to +0.15 mmRockwell C44-C51Split LockSteel£32.15100
AUST187443M1212.5 mm17.5 mm2.5 mm-0.15 mm to +0.15 mmRockwell C44-C51Split LockSteel£32.591
AUST187445M1616.5 mm23 mm3.5 mm-0.2 mm to +0.2 mmRockwell C44-C51Split LockSteel£56.421
AUST182834M1616.5 mm26.5 mm3.6 mm-0.2 mm to +0.2 mmRockwell C44-C51Split LockSteel£40.3450
AUST182835M2021 mm32.5 mm4.2 mm-0.2 mm to +0.2 mmRockwell C44-C51Split LockSteel£64.0250
AUST187447M2021 mm30 mm4.6 mm-0.2 mm to +0.2 mmRockwell C44-C51Split LockSteel£52.5150
AUST187449M2425 mm35 mm5 mm-0.2 mm to +0.2 mmRockwell C44-C51Split LockSteel£73.3125
AUST182836M2425 mm40 mm4.9 mm-0.2 mm to +0.2 mmRockwell C44-C51Split LockSteel£37.2525
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Zinc Plated Steel Internal Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceClassColorPrice (inc. VAT)Pkg. Qty.
AB37480.008.0001#20.089"0.172"-0.01"---£1,676.3690000
BU37480.008.0001#20.095"1/5"Rockwell C40-C500.016"-Not Applicable-£1.75100
CB37321.025.0001#20.256"1/2"-0.035"---£13,125.5037000
DB37321.031.0001#38/25"0.59"-1/25"---£5,596.4617200
EU37480.011.0001#40.123"0.27"Rockwell C40-C500.018"-Not Applicable-£1.341
FB37480.050.0001#40.512"0.867"-0.037"---£1,007.486750
GB37480.087.0001#40.894"1.364"Rockwell C38-C460.052"0.052" to 0.06"--£1,416.072500
H6DZC6#40.123"0.27"Rockwell C40-C500.018"-0.006"Not Applicable-£4.061
IB37480.011.0001#40.115"0.245"-0.012"---£820.2290000
JB37321.037.0001#40.384"0.7"-0.042"---£10,004.0313150
KU37480.013.0001#60.15"0.295"Rockwell C40-C500.022"-Not Applicable-£1.511
LB37321.050.0001#60.512"22/25"-0.055"---£9,420.246750
MB37480.056.0001#60.576"0.957"Rockwell C38-C460.037"0.037" to 0.045"--£1,026.735550
NB37480.025.0001#60.256"0.46"Rockwell C40-C500.023"0.023" to 0.028"--£869.0337000
OB37480.013.0001#60.141"0.275"-0.016"---£1,011.9390000
H6DZC7#60.15"0.295"Rockwell C40-C500.022"-0.006"Not Applicable-£4.24100
PB37480.016.0001#80.168"0.325"-0.018"---£518.9050000
H6DZC8#80.176"0.34"Rockwell C40-C500.023"-0.006"Not Applicable-£6.60100
QU37480.016.0001#80.176"0.34"Rockwell C40-C500.023"-Not Applicable-£1.601
RB37480.062.0001#816/25"1.045"-0.042"---£879.145000
SB37480.031.0001#88/25"0.594"-0.028"---£582.5017200
TB37321.062.0001#816/25"1.1"-0.059"---£9,577.975000
UB37321.075.0001#100.768"1 6/25"-0.071"---£7,186.742970
VB37480.019.0001#100.195"0.365"-0.018"---£606.2950000
WB37480.037.0001#100.384"0.67"-0.032"---£886.9413150
APPROVED VENDOR -

Plain Grade 18-8 Stainless Steel Internal Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceClassPrice (inc. VAT)
AU51462.011.0001#40.115"0.245"Rockwell C45-C500.012"0.012" to 0.018"Not Applicable£7.09
BU51462.013.0001#60.141"0.275"Rockwell C45-C500.016"0.016" to 0.022"Not Applicable£5.48
CU51462.016.0001#80.168"0.325"Rockwell C45-C500.018"0.018" to 0.023"Not Applicable£17.21
DU51462.019.0001#100.195"0.365"Rockwell C45-C500.018"0.018" to 0.024"Not Applicable£8.57
EU51462.050.00011/2"0.512"0.867"Rockwell C45-C500.037"0.037" to 0.045"Not Applicable£16.13
FU51462.025.00011/4"0.256"0.46"Rockwell C20-C450.023"0.023" to 0.028"Not Applicable£14.38
GU51462.075.00013/4"0.769"1.22"Rockwell C45-C500.047"0.047" to 0.055"Not Applicable£21.23
HU51462.037.00013/8"0.384"0.67"-0.032"-Not Applicable£34.86
IU51462.062.00015/8"16/25"1.045"Rockwell C20-C450.042"0.042" to 0.05"Not Applicable£25.36
JU51462.031.00015/16"8/25"0.594"Rockwell C20-C450.028"0.028" to 0.034"Not Applicable£24.07
KU51462.056.00019/16"0.576"0.957"Rockwell C45-C500.037"0.037" to 0.045"Not Applicable£25.19
-

Plain Silicon Bronze Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness ToleranceClassHardnessPrice (inc. VAT)Pkg. Qty.
A1NU87#43/25"0.209"0.025"+0.025"Not ApplicableRockwell B90£5.891
BB43150.025.0001#40.252"0.487"1/16"---£2,672.349300
CU43150.013.0001#60.141"1/4"0.031"Not Rated-Rockwell B90£15.031
DB43150.037.0001#60.377"17/25"3/32"---£2,243.803400
E1NU88#60.148"1/4"0.031"+0.031"Not ApplicableRockwell B90£8.92100
FB43150.019.0001#80.193"0.334"0.047"---£5,880.2030300
GB43150.050.0001#80.502"0.869"1/8"---£4,070.571650
CU43150.016.0001#80.167"0.293"1/25"--Rockwell B90£30.271
HU43150.019.0001#100.193"0.334"0.047"-Not ApplicableRockwell B90£48.16100
IB43150.021.0001#100.22"0.377"0.056"---£7,277.8016600
JB43150.062.0001#100.628"1.073"0.156"---£4,461.03900
CU43150.021.0001#120.22"0.377"0.056"-Not ApplicableRockwell B90£43.93100
CU43150.050.00011/2"0.502"0.869"1/8"-Not ApplicableRockwell B90£53.391
CU43150.025.00011/4"0.252"0.487"1/16"-Not ApplicableRockwell B90£85.301
KU43150.037.00013/8"0.377"17/25"3/32"-Not ApplicableRockwell B90£88.271
LU43150.075.00015/8"0.766"1.265"0.156"+0.188"Not ApplicableRockwell B90£45.841
CU43150.062.00015/8"0.628"1.073"0.156"-Not ApplicableRockwell B90£61.881
CU43150.031.00015/16"0.314"0.583"0.0781"--Rockwell B90£111.531
-

Plain Phosphor Bronze External Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceClassPrice (inc. VAT)Pkg. Qty.
AB50450.011.0001#20.115"0.245"-0.012"--£7,499.1890000
BU50450.011.0001#40.123"0.26"Rockwell B900.018"0.012" to 0.018"Not Applicable£8.901
CB50450.013.0001#40.141"0.305"-0.016"--£7,554.7790000
DU50450.013.0001#60.15"8/25"Rockwell B900.022"0.016" to 0.022"Not Applicable£6.501
EB50450.016.0001#60.168"0.365"-0.018"--£8,861.2550000
AB50450.037.0001#60.384"0.67"-0.032"--£7,249.3214450
FU50450.016.0001#80.176"0.381"Rockwell B900.023"0.018" to 0.023"Not Applicable£16.861
AB50450.019.0001#80.195"0.395"-0.018"--£10,448.2450000
GU50450.019.0001#100.204"0.41"Rockwell B900.024"0.018" to 0.024"Not Applicable£24.761
HB50450.025.0001#100.256"0.494"-0.023"--£7,617.8632200
AB50450.050.0001#100.513"22/25"-0.037"--£10,611.216750
IU50450.050.00011/2"0.53"0.9"Rockwell B900.045"0.037" to 0.045"Not Applicable£36.761
JU50450.025.00011/4"0.267"0.51"Rockwell B900.028"0.023" to 0.028"Not Applicable£21.421
KU50450.037.00013/8"0.384"0.67"Rockwell C500.032"-Not Applicable£33.471
KU50450.031.00015/16"8/25"0.588"Rockwell C500.028"-Not Applicable£34.941
FOREVERBOLT -

NL-19 Grade 316 Stainless Steel Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness ToleranceHardnessColorPrice (inc. VAT)Pkg. Qty.
AFB3LKW6P100#60.141"1/4"0.031"-0.005" to +0.005"Rockwell C35Silver£51.43100
BFB3LKW8P100#81.67"0.293"1/25"-0.005" to +0.005"Rockwell C35Silver£50.54100
CFB3LKW10P100#100.193"0.334"0.047"-0.005" to +0.005"Rockwell C35Silver£51.60100
DFB3LKW1P51"1.003"1.652"1/4"-0.005" to +0.005"Rockwell C35Silver£43.745
EFB3LKW12P251/2"0.502"0.869"1/8"-0.005" to +0.005"Rockwell C35Silver£42.2025
FFB3LKW14P1001/4"0.252"0.487"1/16"-0.005" to +0.005"Rockwell C35Silver£55.58100
GFB3LKW34P203/4"0.753"1.264"3/16"-0.005" to +0.005"Rockwell C35Silver£59.7620
HFB3LKW38P503/8"0.377"17/25"3/32"-0.005" to +0.005"Rockwell C35Silver£48.3450
IFB3LKW58P255/8"0.628"1.072"0.156"-0.005" to +0.005"Rockwell C35Silver£49.2225
JFB3LKW516P505/16"0.314"0.583"0.0781"-0.005" to +0.005"Rockwell C35Silver£43.6750
KFB3LKW78P107/8"0.878"1.455"0.219"-0.005" to +0.005"Rockwell C35Silver£47.2810
LFB3LKW716P257/16"11/25"0.776"0.109"-0.005" to +0.005"Rockwell C35Silver£41.8625
MFB3LKWM3P100M33.1 mm6.2 mm0.8 mm-0.2 mm to +0.2 mmRockwell C35Silver£49.81100
NFB3LKWM4P100M44.1 mm7.6 mm0.9 mm-0.2 mm to +0.2 mmRockwell C35Silver£49.43100
OFB3LKWM5P100M55.1 mm9.2 mm1.2 mm-0.2 mm to +0.2 mmRockwell C35Silver£50.88100
PFB3LKWM6P100M66.1 mm11.8 mm1.6 mm-0.2 mm to +0.2 mmRockwell C35Silver£55.57100
QFB3LKWM8P50M88.1 mm14.8 mm2 mm-0.2 mm to +0.2 mmRockwell C35Silver£33.9450
RFB3LKWM10P50M1010.2 mm18.1 mm2.2 mm-0.2 mm to +0.2 mmRockwell C35Silver£45.4750
SFB3LKWM12P50M1212.2 mm24.1 mm2.5 mm-0.2 mm to +0.2 mmRockwell C35Silver£52.7050
TFB3LKWM16P10M1616.2 mm27.4 mm3.5 mm-0.2 mm to +0.2 mmRockwell C35Silver£22.5610
UFB3LKWM20P10M2020.2 mm33.6 mm4 mm-0.2 mm to +0.2 mmRockwell C35Silver£35.5310
12...1415

Lock Washers

Lock washers are used for creating tight assemblies with ordinary fasteners. Raptor Supplies offers a wide range of lock washers from brands like Unistrut, Vulcan-Hart, Midwest Acorn Nut, Fabory, Super-Strut, Metric Blue, Woodhead, Foreverbolt, Cooper B-Line, Disc-Lock and Armor Coat. These lock washers grab adjoining materials for preventing loosening due to vibration.

Frequently Asked Questions

How to install a lock washer?

  • Place the lock washer between the threaded fastener (like a nut) and the screw / bolt head.
  • Make sure that the lock washer press against the fastener & other adjacent surfaces and forms a tight connection. Press the fastener down to lock the grooves of a tooth lock washer with the grooves of the nut.
  • Use a wrench or ratchet to tighten the nut or threaded fastener.
  • Make sure that the teeth of the tooth lock washer are covered completely by the nut / fastener head, or that the split lock washer is slightly out of alignment to indicate tension on the threaded fastener. Users may loosen the nut / threaded fastener to adjust the washer if it is not operating correctly.

How to remove a lock washer?

  • After the operation is completed, the washer can be removed by simply removing the nut / threaded fastener that is holding the washer in place using a vise-grip or pipe wrench.
  • Use a flat screwdriver to pry the lock washer off. When removing a split washer, the screwdriver head should be placed inside the split or beneath the washer and pushed. When removing a washer having teeth, the screwdriver head should be placed under a tooth and pushed up, repeating the procedure with more teeth if required. For other lock washer types, the screwdriver head can be placed below the washer and pushed up. The washer may break during removal, depending on the amount of pressure being applied.
  • If the lock washer does not budge, use penetrating oil and repeat the previous step.
  • Some lock washers can be used multiple times easily. Other washers (split lock) can be used only 1 or 2 times. Users should not reuse a split lock washer or other damaged washers. Do not use old washers in high-stress joint applications.

What is the difference between lock washers and flat washers?

Flat washers are suitable for increasing the surface area and distributing the applied force when tightening the fastener. They can be used on the fastener's bolt & nut sides, or used as spacers where using a bolt may not be suitable.
Lock washers create tension during tightening to prevent the loosening of nuts. They are generally used on the fastener's nut side for applications involving vibrations.

Which type of lock washers has the highest vibration resistance?

Split Lock, Tooth Lock, Diamond-Coated Lock, Spring Lock and Wedge Lock type lock washers have vibration resistance in ascending or increasing order.

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