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OEM Key Locking Insert: Thin Wall, 2 Keys, M4-0.70 Int Thrd Sz, M6-0.75 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
OEMMil. Spec. Key-Locking Inserts

OEM Key Locking Insert: Thin Wall, 2 Keys, M4-0.70 Int Thrd Sz, M6-0.75 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a thin-wall, mil-spec insert with M4-0.70 internal and M6-0.75 external threads, supplied in a 10-pack. It features 2 keys, a plain finish, coarse thread type, and is made…

SKU 3G-OTH-531784

Also listed as: 217077386 · 217 077386

Brand
OEM
Item
Key Locking Insert: Thin Wall, 2 Keys, M4-0.70 Int Thrd Sz, M6-0.75 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
Available to Order
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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

Technical Specifications

OEM
Manufacturer Part Number
217-077386
Type
M4-0.70 Int Thrd Sz, M6-0.75 Ext Thrd Sz, Plain, Plain, 10 PK
Keys
2
Wall Type
Thin Wall
Finish Type
Plain
Thread Type
Coarse
Industry Standards
Fed Std. H28/21, MJ Form
Compatible Tap Size
M6-0.75
External Thread Fit
2A
Internal Thread Fit
3B
External Thread Size
M6-0.75
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 thin-wall, mil-spec insert with M4-0.70 internal and M6-0.75 external threads, supplied in a 10-pack. It features 2 keys, a plain finish, coarse thread type, and is made from 18-8 material. The insert meets Fed Std. H28/21 and MJ Form standards, with external thread fit 2A and internal thread fit 3B.

Frequently Asked Questions

What is an APPROVED VENDOR Key Locking Insert used for?

This thin-wall key locking insert repairs or strengthens tapped holes in metal assemblies, particularly in aerospace and defense applications. It meets Fed Std. H28/21 and MJ Form standards, providing reliable thread reinforcement with M4-0.70 internal and M6-0.75 external threads.

What are the specifications of the APPROVED VENDOR 217-077386 insert?

This 10-pack insert has M4-0.70 internal and M6-0.75 external threads, thin-wall design, 2 keys, plain finish, coarse thread, 18-8 material, external thread fit 2A, internal thread fit 3B, and compatible tap size M6-0.75. It meets Fed Std. H28/21 and MJ Form standards.

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 217-077386 10-pack or other mil-spec inserts.

How to install a thin-wall key locking insert?

Installation requires tapping the hole to the specified compatible tap size (M6-0.75 for this insert), then using a key locking insert tool to drive the insert until the keys engage. Ensure the external thread fit 2A and internal thread fit 3B are maintained for proper locking.

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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