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E-Z LOK 303-428-PK5 Heavy Wall Self-Locking Insert - Heavy Wall Self-Locking Inserts
E-Z LOKHeavy Wall Self-Locking Inserts

E-Z LOK 303-428-PK5 Heavy Wall Self-Locking Insert

The E-Z LOK Self Locking Thread Insert is a heavy-wall, inch-system insert with a 1/4"-28 UNF internal thread and a 7/16"-14 UNC external thread, supplied as a 5-pack (MPN 303-428-PK5). It features a 2B internal…

SKU 3G-OTH-534110

Also listed as: 303428PK5 · 303 428 PK5

Brand
E-Z LOK
Item
303-428-PK5 Heavy Wall Self-Locking Insert
Part Number
303-428-PK5
Category
Heavy Wall Self-Locking Inserts
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

E-Z LOK
Manufacturer Part Number
303-428-PK5
Type
5 PK
Wall Type
Heavy Wall
Ext Thrd Sz
7/16"-14
Int Thrd Sz
1/4"-28
Thread Type
UNF Internal/UNC External
Compatible Tap Size
7/16"-14
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 1/4"-28 UNF internal thread and a 7/16"-14 UNC external thread, supplied as a 5-pack (MPN 303-428-PK5). It features a 2B internal thread fit and a 2A external thread fit, compatible with a 7/16"-14 tap. 3G Electric sources this genuine OEM component across 14 industrial departments, with specialist expertise in fastening and assembly solutions.

Frequently Asked Questions

What is E-Z LOK Self Locking Thread Insert used for?

E-Z LOK Self Locking Thread Inserts repair or reinforce tapped holes in metal, plastic, or wood. The heavy-wall design provides strong, wear-resistant threads for demanding industrial applications. 3G Electric supplies this genuine OEM component across 14 industrial departments, with specialist expertise in fastening and assembly solutions.

What are the specifications of E-Z LOK 303-428-PK5?

This heavy-wall insert has a 1/4"-28 UNF internal thread and a 7/16"-14 UNC external thread, with 2B internal and 2A external thread fits. It is compatible with a 7/16"-14 tap, uses inch measurement, and comes as a 5-pack (MPN 303-428-PK5).

Where to buy E-Z LOK thread inserts in 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 OEM components across 14 departments. Contact us for pricing and delivery to your location.

How to install E-Z LOK self locking thread inserts?

Installation requires tapping a hole to the specified external thread size (7/16"-14), then driving the insert into the tapped hole using a standard installation tool. The self-locking feature engages upon insertion. Always follow the manufacturer's instructions for torque and depth.

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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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