E-Z LOK Self Locking Thread Insert: Heavy Wall, 7/16"-14 Int Thrd Sz, 5/8"-11 Ext Thrd Sz
The E-Z LOK Self Locking Thread Insert is a heavy-wall, inch-system insert with a 7/16"-14 internal thread and a 5/8"-11 external thread, compatible with a 5/8"-11 tap. Supplied as a 5-pack (MPN 303-7-PK5), it…
SKU 3G-OTH-534156
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Product Description
The E-Z LOK Self Locking Thread Insert is a heavy-wall, inch-system insert with a 7/16"-14 internal thread and a 5/8"-11 external thread, compatible with a 5/8"-11 tap. Supplied as a 5-pack (MPN 303-7-PK5), it features coarse threads with 2A external and 2B internal thread fits.
Frequently Asked Questions
What is E-Z LOK Self Locking Thread Insert used for?
E-Z LOK Self Locking Thread Inserts repair or reinforce stripped or worn internal threads in metal assemblies. The heavy-wall design provides extra holding power for demanding industrial applications such as machinery, automotive, and equipment maintenance where a 7/16"-14 internal thread is needed.
What are the specifications of E-Z LOK 303-7-PK5?
This heavy-wall insert has a 7/16"-14 internal thread size and a 5/8"-11 external thread size, compatible with a 5/8"-11 tap. It uses coarse threads with 2A external and 2B internal thread fits, inch system, supplied as a 5-pack (MPN 303-7-PK5).
Where to buy E-Z LOK thread inserts worldwide?
3G Electric supplies E-Z LOK Self Locking Thread Inserts to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 303-7-PK5 5-pack.
How to install E-Z LOK heavy wall thread inserts?
Installation requires tapping the hole to 5/8"-11 using the compatible tap, then driving the insert into the tapped hole until it is flush or slightly below the surface. Use a standard installation tool for E-Z LOK inserts. Follow manufacturer guidelines for torque and depth to ensure a secure fit.
E-Z LOK Products
3G Electric supplies E-Z LOK heavy wall self-locking inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









