E-Z LOK Self Locking Thread Insert: Thin Wall, 1/4"-20 Int Thrd Sz, 3/8"-16 Ext Thrd Sz
The E-Z LOK Self Locking Thread Insert is a thin-wall, inch-system insert with a 1/4"-20 internal thread size and a 3/8"-16 external thread size, supplied in a 10-pack (MPN 319-4-PK10). It features coarse threads, a…
SKU 3G-OTH-528392
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Product Description
The E-Z LOK Self Locking Thread Insert is a thin-wall, inch-system insert with a 1/4"-20 internal thread size and a 3/8"-16 external thread size, supplied in a 10-pack (MPN 319-4-PK10). It features coarse threads, a compatible tap size of 3/8"-16, and external/internal thread fits of 2A and 2B respectively.
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 the E-Z LOK Self Locking Thread Insert used for?
The E-Z LOK Self Locking Thread Insert repairs or reinforces stripped or worn threads in metal or plastic. Its thin-wall design suits tight spaces, and the self-locking feature resists vibration loosening. 3G Electric supplies this insert for industrial maintenance across machining, material handling, and other departments.
What are the specifications of the E-Z LOK 319-4-PK10 thread insert?
This thin-wall insert has a 1/4"-20 internal thread size and a 3/8"-16 external thread size, with coarse threads. It requires a 3/8"-16 tap, and thread fits are 2B internal and 2A external. The system of measurement is inch, and it comes in a 10-pack (MPN 319-4-PK10).
Where to buy E-Z LOK thread inserts worldwide?
3G Electric supplies E-Z LOK thread inserts worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine parts across 14 departments. Contact us to order the 319-4-PK10 or other E-Z LOK inserts for delivery to your location.
How to install an E-Z LOK self-locking thread insert?
Drill out the damaged thread to the recommended tap size (3/8"-16 for this insert), tap the hole, then thread the insert in using a standard installation tool. The self-locking feature engages upon insertion. 3G Electric can advise on tooling and best practices for your application.
E-Z LOK Products
3G Electric supplies E-Z LOK thin wall self-locking inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









