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Key Locking Inserts

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Key locking inserts prevent rotation by using positive mechanical locks (locking keys). They are ideal for holes made of metallic materials to reinforce threads or repair stripped / damaged...Read more

APPROVED VENDOR -

Key Locking Thread Insert

APPROVED VENDOR 5XA13A
APPROVED VENDOR 5XA14B
APPROVED VENDOR 5WY68C
APPROVED VENDOR 5WY81D
APPROVED VENDOR 5WY83E
APPROVED VENDOR 5WY67F
APPROVED VENDOR 5WY80G
APPROVED VENDOR 5WY82H
APPROVED VENDOR 5WY84I
APPROVED VENDOR 5WY85J
APPROVED VENDOR 5XA17K
APPROVED VENDOR 5XA18L
APPROVED VENDOR 5WY62M
APPROVED VENDOR 5WY61N
StyleModelDrill SizeInstallationInternal Thread SizeLengthMaterialTap SizesThread TypeTypePrice (inc. VAT)
A5XA1337/64"Tool 5XA441/2-13"0.62"Black Phosphate Steel5/8-11UNC4 Locking Keys£39.86
B5XA1437/64"Tool 5XA441/2-200.62"Black Phosphate Steel5/8-11UNF4 Locking Keys£40.03
C5WY6845/64"Tool 5XA441/2-200.62"18-8 Stainless Steel3/4-16UNF4 Locking Keys£131.06
D5WY8145/64"Tool 5XA441/2-200.62"Black Phosphate Steel3/4-16UNF4 Locking Keys£40.05
E5WY8345/64"Tool 5XA449/16-180.81"Black Phosphate Steel3/4-16UNF4 Locking Keys£58.89
F5WY6745/64"Tool 5XA441/2-13"0.62"18-8 Stainless Steel3/4-16UNC4 Locking Keys£108.99
G5WY8045/64"Tool 5XA441/2-13"0.62"Black Phosphate Steel3/4-16UNC4 Locking Keys£37.71
H5WY8245/64"Tool 5XA449/16-120.81"Black Phosphate Steel3/4-16UNC4 Locking Keys£59.30
I5WY8453/64"Tool 5XA455/8-110.87"Black Phosphate Steel7/8-14UNC4 Locking Keys£70.90
J5WY8553/64"Tool 5XA455/8-180.87"Black Phosphate Steel7/8-14UNF4 Locking Keys£69.73
K5XA17QTool 5XA411/4-200.37"18-8 Stainless Steel3/8-16UNC2 Locking Keys£43.41
L5XA18QTool 5XA411/4-280.37"18-8 Stainless Steel3/8-16UNF2 Locking Keys£43.58
M5WY62XTool 5XA411/4-280.37"18-8 Stainless Steel7/16-14UNF2 Locking Keys£36.02
N5WY61XTool 5XA411/4-200.37"18-8 Stainless Steel7/16-14UNC2 Locking Keys£35.45
APPROVED VENDOR -

Thread Insert Locking

APPROVED VENDOR 5WY75A
APPROVED VENDOR 5WY99B
APPROVED VENDOR 5WY74C
APPROVED VENDOR 5XA10D
APPROVED VENDOR 5XA12E
APPROVED VENDOR 5XA11F
APPROVED VENDOR 5WY77G
APPROVED VENDOR 5WY76H
APPROVED VENDOR 5WY79I
APPROVED VENDOR 5WY78J
APPROVED VENDOR 5WY94K
APPROVED VENDOR 5WY69L
APPROVED VENDOR 5WY93M
APPROVED VENDOR 5WY70N
APPROVED VENDOR 5WY71O
APPROVED VENDOR 5WY95P
APPROVED VENDOR 5WY96Q
APPROVED VENDOR 5WY98R
APPROVED VENDOR 5WY73S
APPROVED VENDOR 5WY72T
APPROVED VENDOR 5WY97U
StyleModelDrill SizeInstallationInternal Thread SizeLengthTap SizesThread TypeTypeWall TypePrice (inc. VAT)
A5WY7529/64"Tool 5XA425/16-240.43"1/2-13UNF4 Locking KeysThick£49.23
B5WY9929/64"Tool 5XA433/8-160.5"1/2-13UNC4 Locking KeysThin£53.24
C5WY7429/64"Tool 5XA425/16-180.43"1/2-13UNC4 Locking KeysThick£47.88
D5XA1029/64"Tool 5XA433/8-240.5"1/2-13UNF4 Locking KeysThin£54.16
E5XA1233/64"Tool 5XA437/16-200.62"9/16-12UNF4 Locking KeysThin£72.27
F5XA1133/64"Tool 5XA437/16-140.62"9/16-12UNC4 Locking KeysThin£70.09
G5WY7733/64"Tool 5XA433/8-240.5"9/16-12UNF4 Locking KeysThick£55.38
H5WY7633/64"Tool 5XA433/8-160.5"9/16-12UNC4 Locking KeysThick£54.74
I5WY7937/64"Tool 5XA437/16-200.62"5/8-11UNF4 Locking KeysThick£71.24
J5WY7837/64"Tool 5XA437/16-140.62"5/8-11UNC4 Locking KeysThick£71.38
K5WY94ITool 5XA4010-320.31"5/16-18UNF2 Locking KeysThin£47.94
L5WY69ITool 5XA398-320.31"5/16-18UNC4 Locking KeysThick£81.37
M5WY93ITool 5XA4010-240.31"5/16-18UNC2 Locking KeysThin£49.09
N5WY70QTool 5XA4010-240.31"3/8-16UNC2 Locking KeysThick£42.93
O5WY71QTool 5XA4010-320.31"3/8-16UNF2 Locking KeysThick£42.52
P5WY95QTool 5XA411/4-200.37"3/8-16UNC2 Locking KeysThin£42.03
Q5WY96QTool 5XA411/4-280.37"3/8-16UNF2 Locking KeysThin£43.67
R5WY98XTool 5XA425/16-240.43"7/16-14UNF4 Locking KeysThin£46.34
S5WY73XTool 5XA411/4-280.37"7/16-14UNF2 Locking KeysThick£44.15
T5WY72XTool 5XA411/4-200.37"7/16-14UNC2 Locking KeysThick£44.15
U5WY97XTool 5XA425/16-180.43"7/16-14UNC4 Locking KeysThin£46.20
APPROVED VENDOR -

Thread Insert, 0.500

APPROVED VENDOR 5XA21A
APPROVED VENDOR 5XA22B
APPROVED VENDOR 5WY65C
APPROVED VENDOR 5WY66D
StyleModelDrill SizeInternal Thread SizeTap SizesThread TypeWall TypePrice (inc. VAT)
A5XA2129/64"3/8-161/2-13UNCThin£81.68
B5XA2229/64"3/8-241/2-13UNFThin£96.74
C5WY6533/64"3/8-169/16-12UNCThick£64.91
D5WY6633/64"3/8-249/16-12UNFThick£64.37
APPROVED VENDOR -

Threaded Insert

APPROVED VENDOR 5WY86A
APPROVED VENDOR 5WY87B
APPROVED VENDOR 5WY92C
APPROVED VENDOR 5WY91D
APPROVED VENDOR 5WY90E
APPROVED VENDOR 5WY89F
APPROVED VENDOR 5WY88G
APPROVED VENDOR 5XA31H
APPROVED VENDOR 5XA26I
APPROVED VENDOR 5XA32J
APPROVED VENDOR 5XA27K
APPROVED VENDOR 5XA34L
APPROVED VENDOR 5XA28M
APPROVED VENDOR 5XA33N
APPROVED VENDOR 5XA36O
APPROVED VENDOR 5XA35P
APPROVED VENDOR 5XA29Q
APPROVED VENDOR 5XA37R
APPROVED VENDOR 5XA30S
APPROVED VENDOR 5XA38T
APPROVED VENDOR 5XA23U
APPROVED VENDOR 5XA24V
APPROVED VENDOR 5XA25W
StyleModelDrill SizeInstallationInternal Thread SizeLengthMaterialTap SizesThread TypeTypePrice (inc. VAT)
A5WY861-1/16"Tool 5XA463/4-101.12"Black Phosphate Steel13UNC4 Locking Keys£18.11
B5WY871-1/16"Tool 5XA463/4-161.12"Black Phosphate Steel13UNF4 Locking Keys£19.53
C5WY921-5/16"Tool 5XA471-141.37"Black Phosphate Steel13/8-12UNS4 Locking Keys£72.48
D5WY911-5/16"Tool 5XA471-121.37"Black Phosphate Steel13/8-12UNF4 Locking Keys£66.26
E5WY901-5/16"Tool 5XA471-81.37"Black Phosphate Steel13/8-12UNC4 Locking Keys£67.27
F5WY891.187"Tool 5XA467/8-141.25"Black Phosphate Steel13UNF4 Locking Keys£30.75
G5WY881.187"Tool 5XA467/8-91.25"Black Phosphate Steel13UNC4 Locking Keys£30.90
H5XA316.9mmTool 5XA40M5 x 0.8mm8"Black Phosphate SteelM8 x 1.25mmMetric2 Locking Keys£39.91
I5XA266.90mmTool 5XA40M5 x 0.88"18-8 Stainless SteelM8 x 1.25mmMetric2 Locking Keys£70.35
J5XA328.8mmTool 5XA41M6 x 110"Black Phosphate SteelM10 x 1.25mmMetric2 Locking Keys£41.84
K5XA278.80mmTool 5XA41M6 x 110"18-8 Stainless SteelM10 x 1.25mmMetric2 Locking Keys£63.68
L5XA3410.8mmTool 5XA42M8 x 1.2512"Black Phosphate SteelM12 x 1.25mmMetric4 Locking Keys£45.65
M5XA2810.80mmTool 5XA42M8 x 1.2512"18-8 Stainless SteelM12 x 1.25mmMetric4 Locking Keys£78.07
N5XA3310.80mmTool 5XA42M8 x 112"Black Phosphate SteelM12 x 1.25mmMetric4 Locking Keys£46.16
O5XA3612.8mmTool 5XA43M10 x 1.514"Black Phosphate SteelM14 x 1.5mmMetric4 Locking Keys£57.25
P5XA3512.80mmTool 5XA43M10 x 1.2514"Black Phosphate SteelM14 x 1.5mmMetric4 Locking Keys£57.92
Q5XA2912.80mmTool 5XA43M10 x 1.514"18-8 Stainless SteelM14 x 1.5mmMetric4 Locking Keys£84.82
R5XA3714.75mmTool 5XA44M12 x 1.2516Black Phosphate SteelM16 x 1.5mmMetric4 Locking Keys£75.16
S5XA3014.75mmTool 5XA44M12 x 1.751618-8 Stainless SteelM16 x 1.5mmMetric4 Locking Keys£92.74
T5XA3814.75mmTool 5XA44M12 x 1.7516Black Phosphate SteelM16 x 1.5mmMetric4 Locking Keys£75.90
U5XA2333/64"Tool 5XA437/16-140.62"18-8 Stainless Steel9/16-12UNC4 Locking Keys£94.82
V5XA2437/64"Tool 5XA441/2-13"0.62"18-8 Stainless Steel5/8-11UNC4 Locking Keys£88.37
W5XA2537/64"Tool 5XA441/2-200.62"18-8 Stainless Steel5/8-11UNF4 Locking Keys£100.65
APPROVED VENDOR -

Thread Insert 0.310

APPROVED VENDOR 5XA16A
APPROVED VENDOR 5XA15B
APPROVED VENDOR 5WY60C
StyleModelDrill SizeInternal Thread SizeTap SizesThread TypeWall TypePrice (inc. VAT)
A5XA16I10-325/16-18UNFThin£39.02
B5XA15I10-245/16-18UNCThin£40.59
C5WY60Q10-323/8-16UNFThick£35.11
APPROVED VENDOR -

Thread Insert, 0.430

APPROVED VENDOR 5WY64A
APPROVED VENDOR 5WY63B
APPROVED VENDOR 5XA19C
APPROVED VENDOR 5XA20D
StyleModelDrill SizeInternal Thread SizeTap SizesThread TypeWall TypePrice (inc. VAT)
A5WY6429/64"5/16-241/2-13UNFThick£54.67
B5WY6329/64"5/16-181/2-13UNCThick£53.90
C5XA19X5/16-187/16-14UNCThin£66.67
D5XA20X5/16-247/16-14UNFThin£75.15
APPROVED VENDOR -

Thread Insert 10-24 0.310 L, 5PK

Thread Insert 10-24 0.310 L, 5PK
ModelItemPrice (inc. VAT)
5WY59AE7CNW£34.24

Key Locking Inserts

Key locking inserts prevent rotation by using positive mechanical locks (locking keys). They are ideal for holes made of metallic materials to reinforce threads or repair stripped / damaged / worn-out threads. These units can be easily installed and removed using standard drills / hand / installation tools, without damaging the surfaces or materials. They provide more strength, versatility & resilient operation than traditional threaded holes for accommodating fasteners like screws, bolts & threaded rods.

Frequently Asked Questions

How to choose the length of a key locking insert?

The insert should have a minimum length as that of the desired screw diameter. Users can also select inserts that have longer lengths for greater holding strength. The exact insert length can differ based on the application & the material. Materials like steel do not require long inserts, whereas applications with soft materials like aluminium might need a longer insert.

How to install a key locking thread insert?

  • Drill a hole according to the required insert / screw / bolt length using the suggested drill bit size.
  • Thread the drilled hole using a tap and wind the insert into the hole.
  • Drive the key into the material for a secure hold, using the installation tool & a hammer.

How to remove key locking inserts once installed?

  • Drill the insert to the appropriate size & depth.
  • Bend and break off the keys.
  • Remove the insert from the hole by using a screw extractor or similar tool.
  • Install a replacement key-locking insert into the original hole.

What is the difference between key locking inserts and thread locking inserts?

Key locking inserts use distorted internal threads & / or locking keys to form the strongest hold of all threaded inserts and secure screws & inserts in place. On the other hand, thread locking inserts use adhesives that reach full strength after some time, for keeping inserts in place.

What are the advantages of a key locking insert over a helical threaded insert?

Helical threaded inserts usually have a tang or piece of material that acts as a catch point for the installation tool. When the tang is broken off during installation, it can end up loose inside the application and cause short-circuiting or other malfunctions. There is no such danger with key locking inserts, making them a safer solution.

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