OEM Key Locking Insert: Heavy Wall, 4 Keys, M16x1.5 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, M16x1.5 internal thread size, and M22-1.50 external thread size, supplied in a plain finish, 10-pack. It meets Fed Std. H28/21…
SKU 3G-OTH-531785
Also listed as: 217076571 · 217 076571
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, M16x1.5 internal thread size, and M22-1.50 external thread size, supplied in a plain finish, 10-pack. It meets Fed Std. H28/21 and MJ Form standards, features 18-8 material, coarse thread type, 2A external and 3B internal thread fits, and requires a 20.60 mm drill bit with M22-1.50 compatible tap size.
Frequently Asked Questions
What is a key locking insert used for?
A key locking insert repairs or reinforces stripped threads in metal assemblies, providing a heavy-duty, mil. spec. threaded hole. The APPROVED VENDOR M16x1.5 internal thread insert with 4 keys locks into place to prevent rotation under vibration, ideal for aerospace, defense, and industrial equipment requiring reliable thread restoration.
What are the specifications of the APPROVED VENDOR key locking insert?
This heavy-wall insert has M16x1.5 internal thread, M22-1.50 external thread, 4 keys, plain finish, and 18-8 material. It requires a 20.60 mm drill bit and M22-1.50 tap, meets Fed Std. H28/21 and MJ Form standards, with 2A external and 3B internal thread fits. Supplied in a 10-pack.
Where to buy APPROVED VENDOR key locking inserts worldwide?
3G Electric supplies APPROVED VENDOR key locking inserts worldwide, handling full logistics and customs clearance for global delivery. As a sourcing partner across 14 industrial departments, we provide genuine mil. spec. inserts like this M16x1.5 heavy-wall, 4-key, 10-pack. Contact us for availability and lead time.
How to install a key locking insert?
Drill a 20.60 mm hole, tap it to M22-1.50 using a compatible tap, then thread the insert in until it sits below the surface. The 4 keys lock into the parent material to prevent rotation. Use a standard installation tool; no special adhesives required. Follow Fed Std. H28/21 for torque and depth guidelines.
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.
