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E-Z LOK Heavy Wall Self-Locking Insert - Heavy Wall Self-Locking Inserts
E-Z LOKHeavy Wall Self-Locking Inserts

E-Z LOK Heavy Wall Self-Locking Insert

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

Also listed as: 3037PK5 · 303 7 PK5

Brand
E-Z LOK
Item
Heavy Wall Self-Locking Insert
Part Number
303-7-PK5
Category
Heavy Wall Self-Locking Inserts
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

E-Z LOK
Manufacturer Part Number
303-7-PK5
Type
5 PK
Wall Type
Heavy Wall
Ext Thrd Sz
5/8"-11
Int Thrd Sz
7/16"-14
Thread Type
Coarse
Compatible Tap Size
5/8"-11
External Thread Fit
2A
Internal Thread Fit
2B
System of Measurement
Inch

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E-Z LOK Products
3G Electric (S) Pte. Ltd. — Singapore

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.

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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.

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