E-Z LOK Self Locking Thread Insert: Heavy Wall, 3/4"-10 Int Thrd Sz, 1"-8 Ext Thrd Sz
The E-Z LOK Self Locking Thread Insert: Heavy Wall (MPN 303-12-PK5) is a plain, 5-pack of inch-system coarse-thread inserts with a 3/4"-10 internal thread size and a 1"-8 external thread size. It features a 2B…
SKU 3G-OTH-534163
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Product Description
The E-Z LOK Self Locking Thread Insert: Heavy Wall (MPN 303-12-PK5) is a plain, 5-pack of inch-system coarse-thread inserts with a 3/4"-10 internal thread size and a 1"-8 external thread size. It features a 2B internal thread fit, a 2A external thread fit, and is compatible with a #1-8 tap. This heavy-wall insert is designed for reliable thread repair or reinforcement in industrial applications.
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 is used for thread repair or reinforcement in heavy-duty industrial applications. Its heavy-wall design provides extra strength for stressed threads in metal components, making it suitable for machining, power transmission, and material handling equipment where reliable thread integrity is critical.
What are the specifications of the E-Z LOK 303-12-PK5 thread insert?
The E-Z LOK 303-12-PK5 is a heavy-wall, plain thread insert in a 5-pack. It has a 3/4"-10 internal thread size and a 1"-8 external thread size, both coarse inch threads. Internal thread fit is 2B, external is 2A, and it is compatible with a #1-8 tap.
Where to buy E-Z LOK thread inserts worldwide?
3G Electric supplies E-Z LOK thread inserts worldwide, handling full logistics and customs clearance for global delivery. As a sourcing partner across 14 industrial departments, we provide genuine E-Z LOK parts like the 303-12-PK5 heavy-wall insert to customers in machining, electrical, and other sectors.
How to install an E-Z LOK heavy-wall thread insert?
To install an E-Z LOK heavy-wall thread insert, drill out the damaged thread to the recommended tap size (#1-8 for this insert), tap the hole, then use a standard installation tool to drive the insert until it is slightly below the surface. The self-locking feature secures it without adhesives.
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.









