OEM Mil. Spec. Key-Locking Insert, Heavy Wall, M12x1.75 Int x
<p>This Mil. Spec. Key-Locking Insert is a heavy wall, key-locking insert designed for demanding applications. It features a M12x1.75 internal thread and M18-1.50 external thread, with a plain finish. Made from 18-8…
SKU 3G-OTH-531786
Also listed as: 217077369 · 217 077369
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
<p>This Mil. Spec. Key-Locking Insert is a heavy wall, key-locking insert designed for demanding applications. It features a M12x1.75 internal thread and M18-1.50 external thread, with a plain finish. Made from 18-8 stainless steel, it meets Fed Std. H28/21 and MJ Form standards. The insert has 4 keys and requires a 16.70 mm drill bit, with a compatible tap size of M18-1.50. External thread fit is 2A, internal thread fit is 3B.</p><p>Ideal for aerospace, military, and industrial maintenance, repair, and overhaul (MRO) applications. As a Singapore-based supplier, 3G Electric offers SGD quotes on request, handles GST for local buyers, and provides fast delivery across Singapore and Southeast Asia.</p>
Frequently Asked Questions
What are the thread specifications and material of this insert?
The insert has a M12x1.75 internal thread and M18-1.50 external thread, with coarse thread type. It is made from 18-8 stainless steel and has a plain finish.
What are the drilling and tapping requirements?
The recommended drill bit size is 16.70 mm, and the compatible tap size is M18-1.50. The external thread fit is 2A and internal thread fit is 3B.
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.