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
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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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.
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.
