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APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, M14x1.5 Int Thrd Sz, M20-1.50 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, M14x1.5 Int Thrd Sz, M20-1.50 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil. spec. insert with 4 keys, M14x1.5 internal thread size, M20-1.50 external thread size, and a plain finish, supplied in a 10-pack. It meets Fed Std. H28/21…

SKU 3G-OTH-531708

Brand
APPROVED VENDOR
Item
Key Locking Insert: Heavy Wall, 4 Keys, M14x1.5 Int Thrd Sz, M20-1.50 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-077570
Type
M14x1.5 Int Thrd Sz, M20-1.50 Ext Thrd Sz, Plain, 10 PK
Keys
4
Wall Type
Heavy Wall
Finish Type
Plain
Thread Type
Coarse
Drill Bit Size
18.70 mm
Industry Standards
Fed Std. H28/21, MJ Form
Compatible Tap Size
M20-1.50
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

The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil. spec. insert with 4 keys, M14x1.5 internal thread size, M20-1.50 external thread size, and a plain finish, supplied in a 10-pack. It meets Fed Std. H28/21 and MJ Form standards, is made from 18-8 material, and requires an 18.70 mm drill bit with a compatible M20-1.50 tap size, featuring 2A external and 3B internal thread fits.

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 threads in metal assemblies, especially where vibration could loosen standard fasteners. The APPROVED VENDOR heavy-wall insert with 4 keys provides a permanent, mil. spec. thread repair solution for demanding industrial applications.

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

This heavy-wall insert has M14x1.5 internal thread size and M20-1.50 external thread size, with 4 keys and a plain finish. It meets Fed Std. H28/21 and MJ Form standards, is made from 18-8 material, requires an 18.70 mm drill bit, and has 2A external and 3B internal thread fits.

Where to buy APPROVED VENDOR key locking inserts worldwide?

3G Electric supplies the APPROVED VENDOR key locking insert worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this mil. spec. thread repair insert.

How to install a key locking insert?

Installation requires drilling to 18.70 mm, tapping with an M20-1.50 tap, then driving the insert flush using a compatible tool. The 4 keys lock into the parent material to prevent rotation. Always follow the manufacturer's instructions for proper thread fit and torque.

Used in

Common applications for APPROVED VENDOR
Laboratory sampling — APPROVED VENDOR clear wide mouth glass bottles for collecting and storing liquid samples in non-sterile environments.
Steam heating maintenance — APPROVED VENDOR forged brass radiator valves for regulating steam flow in commercial building heating systems.
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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