APPROVED VENDOR Key Locking Insert: Extra Heavy Wall, 4 Keys, 3/8"-16 Int Thrd Sz, 5/8"-11 Ext Thrd Sz
The APPROVED VENDOR Key Locking Insert is a Mil. Spec. key-locking insert with an Extra Heavy Wall, featuring 4 keys, a 3/8"-16 internal thread size, and a 5/8"-11 external thread size. Supplied as a plain, 10-pack…
SKU 3G-OTH-531645
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Product Description
The APPROVED VENDOR Key Locking Insert is a Mil. Spec. key-locking insert with an Extra Heavy Wall, featuring 4 keys, a 3/8"-16 internal thread size, and a 5/8"-11 external thread size. Supplied as a plain, 10-pack (MPN 217-076336), it meets MS51830-109L standards, is made from 18-8 material, and has a 2A external and 3B internal thread fit.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is an APPROVED VENDOR Key Locking Insert used for?
This Mil. Spec. key-locking insert repairs or reinforces tapped holes in metal assemblies, especially where vibration loosens standard threads. The extra heavy wall and 4 keys lock the insert in place, restoring a 3/8"-16 internal thread after the original thread is stripped or damaged.
What are the specifications of the APPROVED VENDOR Key Locking Insert 217-076336?
This 10-pack insert has an extra heavy wall, 3/8"-16 internal thread, 5/8"-11 external thread, 2A external fit, 3B internal fit, and meets MS51830-109L. It is made from 18-8 stainless steel, plain finish, and requires a 5/8"-11 tap. Supplied by APPROVED VENDOR.
Where to buy APPROVED VENDOR Key Locking Inserts worldwide?
3G Electric supplies APPROVED VENDOR Key Locking Inserts worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 10-pack (MPN 217-076336) or other Mil. Spec. insert sizes.
How to install an APPROVED VENDOR Key Locking Insert?
Drill out the damaged thread, tap the hole to 5/8"-11 using the compatible tap, then thread the insert in until it sits slightly below the surface. Drive the 4 keys down into the parent material to lock it. Use a standard installation tool for key-locking inserts.
Used in
Common applications for APPROVED VENDORAPPROVED VENDOR Products
3G Electric supplies APPROVED VENDOR mil. spec. key-locking inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









