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APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, M16-2.00 Int Thrd Sz, M22-1.50 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, M16-2.00 Int Thrd Sz, M22-1.50 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil. spec. insert with 4 keys, M16-2.00 internal and M22-1.50 external thread sizes, in a plain finish. Supplied as a 10-pack, it meets Fed Std. H28/21 and MJ…

SKU 3G-OTH-531804

Brand
APPROVED VENDOR
Item
Key Locking Insert: Heavy Wall, 4 Keys, M16-2.00 Int Thrd Sz, M22-1.50 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-077371
Type
M16-2.00 Int Thrd Sz, M22-1.50 Ext Thrd Sz, Plain, 10 PK
Keys
4
Wall Type
Heavy Wall
Finish Type
Plain
Thread Type
Coarse
Drill Bit Size
20.60 mm
Industry Standards
Fed Std. H28/21, MJ Form
Compatible Tap Size
M22-1.50
External Thread Fit
2A
Internal Thread Fit
3B
External Thread Size
M22-1.50
Material Grade/Class
18-8
System of Measurement
Metric
View Full Spec Sheet

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APPROVED VENDOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil. spec. insert with 4 keys, M16-2.00 internal and M22-1.50 external thread sizes, in a plain finish. Supplied as a 10-pack, it meets Fed Std. H28/21 and MJ Form standards, with a 20.60 mm drill bit size, M22-1.50 compatible tap size, 2A external and 3B internal thread fits, and is made from 18-8 material.

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 a key locking insert used for?

A key locking insert repairs or reinforces tapped threads in metal assemblies, especially where vibration or high torque is present. The APPROVED VENDOR heavy-wall, 4-key design with M16-2.00 internal and M22-1.50 external threads meets mil. spec. Fed Std. H28/21 for aerospace, defense, and industrial applications.

What are the specifications of the APPROVED VENDOR key locking insert?

This heavy-wall insert has 4 keys, M16-2.00 internal thread and M22-1.50 external thread, plain finish, 18-8 material, 20.60 mm drill bit size, M22-1.50 compatible tap, 2A external and 3B internal thread fits. It meets Fed Std. H28/21 and MJ Form standards, supplied as a 10-pack.

Where to buy APPROVED VENDOR key locking inserts worldwide?

3G Electric supplies the APPROVED VENDOR key locking insert (MPN 217-077371) worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this 10-pack of heavy-wall, 4-key inserts.

How to install a key locking insert?

Drill a 20.60 mm hole, tap with M22-1.50 tap, then thread the insert using a key locking insert tool until the keys engage the parent material. The 4 keys lock the insert against rotation. Use thread locker for added security. Follow mil. spec. Fed Std. H28/21 for torque and depth requirements.

Used in

Common applications for APPROVED VENDOR
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High-pressure cleaning — APPROVED VENDOR turbo spray nozzles for pressure washers used in industrial equipment cleaning up to 6,000 psi.
Cleanroom operations — APPROVED VENDOR vinyl task chairs for seating in ISO 5 classified manufacturing or assembly areas.
General sealing — APPROVED VENDOR natural rubber stoppers for closing laboratory flasks or test tubes in educational or research settings.
Tamper-evident security — APPROVED VENDOR brass lead and wire seals for securing utility meters, cargo containers, or access panels.

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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