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APPROVED VENDOR Key Locking Insert: Thin Wall, 4 Keys, M8x1.25 Int Thrd Sz, M12x1.25 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Thin Wall, 4 Keys, M8x1.25 Int Thrd Sz, M12x1.25 Ext Thrd Sz

APPROVED VENDOR Mil. Spec. Key-Locking Insert, Thin Wall, with 4 keys, M8x1.25 internal thread size, M12x1.25 external thread size, plain finish, 10 PK (MPN 217-076353). This 18-8 coarse-thread metric insert meets…

SKU 3G-OTH-531775

Brand
APPROVED VENDOR
Item
Key Locking Insert: Thin Wall, 4 Keys, M8x1.25 Int Thrd Sz, M12x1.25 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
Available to Order
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-076353
Type
M8x1.25 Int Thrd Sz, M12x1.25 Ext Thrd Sz, Plain, 10 PK
Keys
4
Wall Type
Thin Wall
Finish Type
Plain
Thread Type
Coarse
Industry Standards
Fed Std. H28/21, MJ Form
Compatible Tap Size
M12x1.25
External Thread Fit
2A
Internal Thread Fit
3B
Material Grade/Class
18-8
System of Measurement
Metric
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APPROVED VENDOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

APPROVED VENDOR Mil. Spec. Key-Locking Insert, Thin Wall, with 4 keys, M8x1.25 internal thread size, M12x1.25 external thread size, plain finish, 10 PK (MPN 217-076353). This 18-8 coarse-thread metric insert meets Fed Std. H28/21 and MJ Form, with 2A external and 3B internal thread fits, compatible with M12x1.25 tap.

Frequently Asked Questions

What is an APPROVED VENDOR key locking insert used for?

This thin-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 for high-reliability threaded fasteners.

What are the specifications of the APPROVED VENDOR M8x1.25 key locking insert?

This insert has an M8x1.25 internal thread and M12x1.25 external thread, with 2A external and 3B internal thread fits. It is made from 18-8 stainless steel, has a plain finish, and comes in a 10-pack (MPN 217-076353).

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 this M8x1.25 thin-wall insert (MPN 217-076353).

How to install a thin-wall key locking insert?

Installation requires tapping the hole to the compatible tap size (M12x1.25), then winding the insert onto a driver tool until it is flush or slightly below the surface. The 4 keys lock the insert in place. Use a tang break-off tool if needed.

Used in

Common applications for APPROVED VENDOR
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APPROVED 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.

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