APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, M8-1.00 Int Thrd Sz, M14x1.5 Ext Thrd Sz
The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil. spec. insert with 4 keys, M8-1.00 internal thread size, M14x1.5 external thread size, plain finish, and 18-8 material grade. It meets Fed Std. H28/21 and…
SKU 3G-OTH-531780
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Product Description
The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil. spec. insert with 4 keys, M8-1.00 internal thread size, M14x1.5 external thread size, plain finish, and 18-8 material grade. It meets Fed Std. H28/21 and MJ Form standards, with a 2A external thread fit and 3B internal thread fit, compatible with M14x1.5 tap size, sold in a 10-pack.
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 heavy-wall key locking insert with 4 keys is used to repair or reinforce tapped threads in metal assemblies, particularly in aerospace and defense applications. It meets Fed Std. H28/21 and MJ Form standards, ensuring reliable thread locking under vibration.
What are the specifications of the APPROVED VENDOR key locking insert?
This insert has M8-1.00 internal thread size, M14x1.5 external thread size, plain finish, 18-8 material grade, 2A external thread fit, and 3B internal thread fit. It is compatible with M14x1.5 tap size and comes in a 10-pack.
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 availability and lead time on this 10-pack of heavy-wall inserts with 4 keys.
How to install an APPROVED VENDOR key locking insert?
Installation requires tapping the hole to M14x1.5, then using a key locking insert tool to drive the insert until the keys engage. Ensure the external thread fit is 2A and internal fit is 3B for proper locking. Follow standard mil. spec. procedures for best results.
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.









