APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 3/4"-16 Int Thrd Sz, 1 1/8"-12 Ext Thrd Sz
The APPROVED VENDOR Key Locking Insert is a stainless steel, heavy-wall insert with 4 keys, a 3/4"-16 internal thread size, and a 1 1/8"-12 external thread size. Supplied as a plain finish, 10-pack, this inch-system…
SKU 3G-OTH-535611
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Product Description
The APPROVED VENDOR Key Locking Insert is a stainless steel, heavy-wall insert with 4 keys, a 3/4"-16 internal thread size, and a 1 1/8"-12 external thread size. Supplied as a plain finish, 10-pack, this inch-system insert features coarse threads with 2A external and 2B internal thread fits, made from C1215 material grade.
Frequently Asked Questions
What is a key locking insert used for?
A key locking insert repairs or reinforces tapped holes in metal assemblies. The external keys lock the insert into the parent material, preventing rotation under vibration or load. This APPROVED VENDOR heavy-wall insert suits high-stress applications in machinery, automotive, and industrial equipment where thread integrity is critical.
What are the specifications of the APPROVED VENDOR key locking insert?
This heavy-wall insert has a 3/4"-16 internal thread and a 1 1/8"-12 external thread, coarse thread type, with 2A external and 2B internal fits. It includes 4 keys, a plain finish, and is made from C1215 material grade. Supplied as a 10-pack, it is compatible with a 1-1/8"-12 tap size.
Where to buy APPROVED VENDOR key locking inserts worldwide?
3G Electric supplies APPROVED VENDOR key locking inserts worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this 10-pack heavy-wall insert with 4 keys and plain finish.
How to install a key locking insert?
Installation requires tapping the hole to the specified compatible tap size (1-1/8"-12 for this insert), then driving the insert into the tapped hole using a proper installation tool. The external keys embed into the parent material to lock the insert in place. Follow standard thread-insert best practices for torque and alignment.
Used in
Common applications for APPROVED VENDORAPPROVED VENDOR Products
3G Electric supplies APPROVED VENDOR stainless steel key-locking inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









