We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

OEM Key Locking Insert: Heavy Wall, 4 Keys, M12x1.25 Int Thrd Sz, M18-1.50 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
OEMMil. Spec. Key-Locking Inserts

OEM Key Locking Insert: Heavy Wall, 4 Keys, M12x1.25 Int Thrd Sz, M18-1.50 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil. spec. insert with 4 keys, M12x1.25 internal thread size, M18-1.50 external thread size, plain finish, and 18-8 material grade. It meets Fed Std. H28/21 and…

SKU 3G-OTH-531703

Also listed as: 217077569 · 217 077569

Brand
OEM
Item
Key Locking Insert: Heavy Wall, 4 Keys, M12x1.25 Int Thrd Sz, M18-1.50 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
Available to Order
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Worldwide Shipping
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

OEM
Manufacturer Part Number
217-077569
Type
M12x1.25 Int Thrd Sz, M18-1.50 Ext Thrd Sz, Plain, 10 PK
Keys
4
Wall Type
Heavy Wall
Finish Type
Plain
Thread Type
Coarse
Drill Bit Size
16.70 mm
Industry Standards
Fed Std. H28/21, MJ Form
Compatible Tap Size
M18-1.50
External Thread Fit
2A
Internal Thread Fit
3B
Material Grade/Class
18-8
System of Measurement
Metric

Technical Documents

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OEM 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, M12x1.25 internal thread size, M18-1.50 external thread size, plain finish, and 18-8 material grade. It meets Fed Std. H28/21 and MJ Form standards, with a compatible tap size of M18-1.50 and drill bit size of 16.70 mm, supplied 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 is used to repair or reinforce threaded holes in metal assemblies, particularly in aerospace and defense applications. It meets mil. spec. standards Fed Std. H28/21 and MJ Form, providing a secure, reusable thread in materials where standard threads may strip.

What are the specifications of the APPROVED VENDOR key locking insert 217-077569?

This insert has an M12x1.25 internal thread and M18-1.50 external thread, with a heavy wall, 4 keys, and plain finish. It is made from 18-8 stainless steel, requires a 16.70 mm drill bit and M18-1.50 tap, and meets Fed Std. H28/21 and MJ Form standards. Supplied in a 10-pack.

Where to buy APPROVED VENDOR key locking inserts worldwide?

3G Electric supplies APPROVED VENDOR key locking inserts worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to order the 10-pack of heavy-wall inserts with M12x1.25 internal thread and M18-1.50 external thread.

How to install an APPROVED VENDOR key locking insert?

Drill a 16.70 mm hole, tap it to M18-1.50 using a compatible tap, then thread the insert into the hole using a key locking insert tool. Ensure the keys align with the tapped slots to lock the insert in place. Follow standard mil. spec. installation practices for 18-8 stainless steel inserts.

OEM Products

3G Electric supplies OEM 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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Cross-referenced by specification & description
Key Locking Insert: Heavy Wall, 4 Keys, 7/8"-14 Int Thrd Sz, 1 1/4"-12 Ext Thrd Sz, Plain, 10 PK (MPN 217-076510)
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Key Locking Insert: Heavy Wall, 4 Keys, M10x1.5 Int Thrd Sz, M16x1.5 Ext Thrd Sz, Plain, 10 PK (MPN 217-077367)
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Key Locking Insert: Extra Heavy Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 1/2"-13 Ext Thrd Sz, Plain, 10 PK (MPN 217-076534)
Key Locking Insert: Extra Heavy Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 1/2"-13 Ext Thrd Sz, Plain, 10 PK (MPN 217-077334)
Key Locking Insert: Extra Heavy Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 1/2"-13 Ext Thrd Sz, Plain, 10 PK (MPN 217-077334)