E-Z LOK Self Locking Thread Insert: Heavy Wall, 1/2"-13 Int Thrd Sz, 3/4"-10 Ext Thrd Sz
The E-Z LOK Self Locking Thread Insert is a heavy-wall, inch-system insert with a 1/2"-13 internal thread and a 3/4"-10 external thread, supplied in a 5-pack (SKU 4ZE25, MPN 329-801-PK5). It features coarse thread…
SKU 3G-OTH-534118
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Product Description
The E-Z LOK Self Locking Thread Insert is a heavy-wall, inch-system insert with a 1/2"-13 internal thread and a 3/4"-10 external thread, supplied in a 5-pack (SKU 4ZE25, MPN 329-801-PK5). It features coarse thread type, 2A external thread fit, 2B internal thread fit, and is compatible with a 3/4"-10 tap. 3G Electric interprets this demand and sources the genuine OEM product, backed by our specialist expertise in fastening and industrial components across 14 departments.
Frequently Asked Questions
What is an E-Z LOK heavy wall self-locking thread insert used for?
An E-Z LOK heavy wall self-locking thread insert repairs or reinforces stripped or worn threads in metal assemblies. It provides a durable, reusable internal thread (1/2"-13) with a locking element that resists vibration loosening, commonly used in automotive, industrial machinery, and heavy equipment applications.
What are the specifications of the E-Z LOK 329-801-PK5 thread insert?
The E-Z LOK 329-801-PK5 is a 5-pack of heavy wall self-locking inserts with a 1/2"-13 internal thread size and 3/4"-10 external thread size. It uses coarse thread type, 2B internal thread fit, 2A external thread fit, and is compatible with a 3/4"-10 tap. System of measurement is inch.
Where to buy E-Z LOK thread inserts worldwide?
3G Electric supplies genuine E-Z LOK thread inserts worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to order the 329-801-PK5 5-pack or other E-Z LOK fastening components for your application.
How to install an E-Z LOK heavy wall thread insert?
To install an E-Z LOK heavy wall insert, drill out the damaged thread to the specified tap size (3/4"-10), tap the hole to the same size, then thread the insert into the tapped hole using a standard installation tool. The insert's locking element secures it in place. Follow manufacturer instructions for torque and depth.
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.









