Self Locking Inserts

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Self-locking inserts are suitable for locking threaded fasteners inside a tapped hole in automobile, aerospace and maintenance applications. Raptor Supplies offers these thread-locking...Read more

E-Z LOK -

Grade 303 Stainless Steel Self Locking Inserts

StyleModelInternal Thread SizeExternal Thread SizeMin. Full Thread DepthExternal ClassInternal ClassThread TypePower DriverWall TypePrice (inc. VAT)Pkg. Qty.
A303-004#4-40#10-329/32"Class 2AClass 2BCoarse Internal/Coarse External-Heavy Wall£29.8410
B303-006#6-321/4"-2011/32"Class 2AClass 2BCoarse Internal/Coarse External4ZE51Heavy Wall£17.055
C303-008#8-325/16"-187/16"Class 2AClass 2BCoarse Internal/Coarse External4ZE52Heavy Wall£19.415
D303-3#10-243/8"-1615/32"Class 2AClass 2BCoarse Internal/Coarse External4ZE53Heavy Wall£21.885
E303-332#10-323/8"-1615/32"Class 2AClass 2BCoarse Internal/Coarse External4ZE53Heavy Wall£27.175
F303-81/2"-133/4"-103/4"Class 2AClass 2BCoarse Internal/Coarse External4ZE58Heavy Wall£36.665
G303-8201/2"-203/4"-103/4"Class 2AClass 2BCoarse Internal/Coarse External4ZE58Heavy Wall£40.485
H303-41/4"-207/16"-141/2"Class 2AClass 2BCoarse Internal/Coarse External4ZE54Heavy Wall£18.755
I303-4281/4"-287/16"-141/2"Class 2AClass 2BCoarse Internal/Coarse External4ZE54Heavy Wall£22.125
J303-123/4"-101"-87/8"Class 2AClass 2BCoarse4ZE60Heavy Wall£92.535
K303-63/8"-169/16"-1219/32"Class 2AClass 2BCoarse Internal/Coarse External4ZE56Heavy Wall£25.565
L303-6243/8"-249/16"-1219/32"Class 2AClass 2BFine Internal/Coarse External4ZE56Heavy Wall£35.555
M303-105/8"-117/8"-913/16"Class 2AClass 2BCoarse Internal/Coarse External4ZE59Heavy Wall£44.785
N303-55/16"-181/2"-139/16"Class 2AClass 2BCoarse Internal/Coarse External4ZE55Heavy Wall£21.325
O303-5245/16"-241/2"-139/16"Class 2AClass 2BFine Internal/Coarse External4ZE55Heavy Wall£23.155
P303-77/16"-145/8"-1123/32"Class 2AClass 2BCoarse Internal/Coarse External4ZE57Heavy Wall£32.165
Q303-7207/16"-205/8"-1123/32"Class 2AClass 2BCoarse Internal/Coarse External4ZE57Heavy Wall£35.005
R453-3M3 x 0.5M6 x 15/16"Class 6GClass 6HMetric Internal/Metric External-Heavy Wall£16.435
S453-4M4 x 0.7M8 x 1.2523/64"Class 6GClass 6HMetric Internal/Metric External4ZE52Heavy Wall£15.875
T453-5M5 x 0.8M8 x 1.2523/64"Class 6GClass 6HMetric Internal/Metric External4ZE52Heavy Wall£19.335
U453-6M6 x 1M10 x 1.531/64"Class 6GClass 6HMetric Internal/Metric External4ZE54Heavy Wall£19.665
V653-6M6 x 13/8"-1615/32"Class 2AClass 6HMetric Internal/Coarse External4ZE54Heavy Wall£19.235
W453-8M8 x 1.25M12 x 1.7537/64"Class 6GClass 6HMetric Internal/Metric External4ZE55Heavy Wall£19.945
X653-8M8 x 1.251/2"-139/16"Class 2AClass 6HMetric Internal/Coarse External4ZE55Heavy Wall£26.865
Y453-10M10 x 1.5M16 x 23/4"Class 6GClass 6HMetric Internal/Metric External4ZE56Heavy Wall£29.295
POWERS FASTENERS -

Carbon Steel Self Locking Inserts

StyleModelInternal Thread SizeExternal Thread SizeWall TypeMin. Full Thread DepthExternal ClassInternal ClassThread TypePower DriverPrice (inc. VAT)Pkg. Qty.
A329-004#4-40#10-32Heavy Wall9/32"Class 2AClass 2BCoarse Internal/Coarse External-£13.9610
B550-006#6-32M6 x 1Heavy Wall5/16"Class 2AClass 2BCoarse Internal/Metric External4ZE51£12.215
C329-006#6-321/4"-20Heavy Wall11/32"Class 2AClass 2BCoarse Internal/Coarse External4ZE51£10.9610
D329-008#8-325/16"-18Heavy Wall7/16"Class 2AClass 2BCoarse Internal/Coarse External4ZE52£12.0910
E550-008#8-32M8 x 1.25Heavy Wall23/64"Class 2AClass 2BCoarse Internal/Metric External4ZE52£11.215
F319-3#10-245/16"-18Thin Wall3/8"Class 2AClass 2BCoarse Internal/Coarse External4ZE53£14.5110
G550-1024#10-24M8 x 1.25Heavy Wall31/64"Class 2AClass 2BCoarse Internal/Metric External4ZE53£9.845
H329-3#10-243/8"-16Heavy Wall15/32"Class 2AClass 2BCoarse Internal/Coarse External4ZE53£13.6310
I319-332#10-325/16"-18Thin Wall3/8"Class 2AClass 2BCoarse Internal/Coarse External4ZE53£17.0910
J550-1032#10-32M8 x 1.25Heavy Wall31/64"Class 2AClass 2BCoarse Internal/Metric External4ZE53£10.795
K329-332#10-323/8"-16Heavy Wall15/32"Class 2AClass 2BFine Internal/Coarse External4ZE53£11.0010
L329-161"-81 3/8"-12Heavy Wall1 3/8"Class 2AClass 2BCoarse Internal/Coarse External-£53.435
M329-16141"-141 3/8"-12Heavy Wall1 3/8"Class 2AClass 2BCoarse Internal/Coarse External-£66.285
N550-81/2"-13M16 x 2Heavy Wall3/4"Class 2AClass 2BCoarse Internal/Metric External4ZE58£21.735
O329-81/2"-133/4"-10Heavy Wall3/4"Class 2AClass 2BCoarse Internal/Coarse External4ZE58£15.995
P329-8011/2"-133/4"-10Heavy Wall1"Class 2AClass 2BCoarse Internal/Coarse External4ZE58£18.185
Q335-81/2"-137/8"-9Extra Heavy Wall13/16"Class 2AClass 2BCoarse Internal/Coarse External4ZE58£15.015
R319-81/2"-135/8"-11Thin Wall11/16"Class 2AClass 2BCoarse Internal/Coarse External4ZE58£16.575
S329-8201/2"-203/4"-10Heavy Wall3/4"Class 2AClass 2BCoarse Internal/Coarse External4ZE58£13.235
T319-8201/2"-205/8"-11Thin Wall11/16"Class 2AClass 2BFine Internal/Coarse External4ZE58£12.985
U550-14201/4"-20M10 x 1.5Heavy Wall37/64"Class 2AClass 2BCoarse Internal/Metric External4ZE54£11.855
V329-41/4"-207/16"-14Heavy Wall1/2"Class 2AClass 2BCoarse Internal/Coarse External4ZE54£17.1910
W335-41/4"-201/2"-13Extra Heavy Wall9/16"Class 2AClass 2BCoarse Internal/Coarse External4ZE54£18.4210
X319-41/4"-203/8"-16Thin Wall7/16"Class 2AClass 2BCoarse Internal/Coarse External4ZE54£16.4410
Y329-4281/4"-287/16"-14Heavy Wall1/2"Class 2AClass 2BCoarse Internal/Coarse External4ZE54£15.4210
POWERS FASTENERS -

Screw Anchor, 1/4 In - 20 Int. Thread Size, 11/16 In Lg., Carbon Steel, 1/4 In Size, 100 Pk

ModelItemPrice (inc. VAT)Pkg. Qty.
6400SD-PWRAD6PEH£154.24100
POWERS FASTENERS -

Screw Anchor, 3/8 In - 16 Int. Thread Size, 11/16 In Lg., Carbon Steel, 3/8 In Size, 50 Pk

ModelItemPrice (inc. VAT)Pkg. Qty.
6401SD-PWRAD6PEJ£84.3350
POWERS FASTENERS -

Screw Anchor, 1/2 In - 13 Int. Thread Size, 29/32 In Lg., Carbon Steel, 1/2 In Size, 50 Pk

ModelItemPrice (inc. VAT)Pkg. Qty.
6403SD-PWRAD6PEK£285.9250
POWERS FASTENERS -

Setting Tool, Carbon Steel, 1/4 In Size, Zn Plated

ModelItemPrice (inc. VAT)Pkg. Qty.
6402SD-PWRAD6PEL£17.401
POWERS FASTENERS -

Setting Tool, Carbon Steel, 3/8 In Size, Zn Plated

ModelItemPrice (inc. VAT)Pkg. Qty.
6407SD-PWRAD6PEM£16.591
POWERS FASTENERS -

Setting Tool, 1/2 In - 13 Internal Thread Size, Carbon Steel, 1/2 In Size, Zn Plated

ModelItemPrice (inc. VAT)Pkg. Qty.
6404SD-PWRAD6PEN£25.941

Self Locking Inserts

Self-locking inserts are suitable for locking threaded fasteners inside a tapped hole in automobile, aerospace and maintenance applications. Raptor Supplies offers these thread-locking inserts from E-Z Lok. They lock the threads of the fastener and prevent their loosening due to vibration.

Frequently Asked Questions

What is the significance of open-ended self-locking inserts?

Inserts having an open end allow installation of fasteners longer than the inserts.

What are some compatible accessories used with these self-locking inserts?

Raptor Supplies offers compatible insert tools like drill bits, standard taps, bolts with two nuts and installation bits for installing these inserts.

How to install a self-locking insert?

  • Drill a hole according to the insert length & diameter using a standard drill.
  • Tap the drilled hole using a standard tap of the desired thread size.
  • Wind the insert into the hole like an ordinary fastener using a screwdriver, bolt & jam nut or an optional E-Z LOK drive tool.
  • 5 minutes after the threaded insert is placed in the hole, the pre-applied Loctite adhesive on the external threads starts setting for installing the fastener in minutes. After fully curing (72 hours), they can seal against liquids or gases having pressure up to 6000 psi.

Can we reuse these inserts once removed?

The external thread adhesive of these inserts starts setting after installation. Users can install a bolt inside it only if they do not want to remove it in future. Removing the bolt from the insert & the insert from the material after installation may destroy the adhesive & hence the insert's effectiveness. So, users can not reuse these inserts once removed from the application surface.

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