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E-Z LOK Self Locking Thread Insert: Heavy Wall, 3/8"-16 Int Thrd Sz, 9/16"-12 Ext Thrd Sz - Heavy Wall Self-Locking Inserts
E-Z LOKHeavy Wall Self-Locking Inserts

E-Z LOK Self Locking Thread Insert: Heavy Wall, 3/8"-16 Int Thrd Sz, 9/16"-12 Ext Thrd Sz

The E-Z LOK Self Locking Thread Insert is a heavy-wall, inch-system insert with a 3/8"-16 internal thread size and a 9/16"-12 external thread size, supplied in a 5-pack (SKU 303-6-PK5, MPN 303-6-PK5). It features…

SKU 3G-OTH-534115

Also listed as: 3036PK5 · 303 6 PK5

Brand
E-Z LOK
Item
Self Locking Thread Insert: Heavy Wall, 3/8"-16 Int Thrd Sz, 9/16"-12 Ext Thrd Sz
Category
Heavy Wall Self-Locking Inserts
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

E-Z LOK
Manufacturer Part Number
303-6-PK5
Type
5 PK
Wall Type
Heavy Wall
Ext Thrd Sz
9/16"-12
Int Thrd Sz
3/8"-16
Thread Type
Coarse
Compatible Tap Size
9/16"-12
External Thread Fit
2A
Internal Thread Fit
2B
System of Measurement
Inch

Technical Documents

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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 3/8"-16 internal thread size and a 9/16"-12 external thread size, supplied in a 5-pack (SKU 303-6-PK5, MPN 303-6-PK5). It features coarse threads, a compatible tap size of 9/16"-12, and external/internal thread fits of 2A and 2B respectively.

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 across machining, power transmission, and material handling equipment.

What are the specifications of E-Z LOK 303-6-PK5 thread insert?

This heavy-wall insert has a 3/8"-16 internal thread size and a 9/16"-12 external thread size, with coarse threads. It requires a 9/16"-12 tap, has external thread fit 2A and internal thread fit 2B, and is supplied in a 5-pack (MPN 303-6-PK5).

Where to buy E-Z LOK thread inserts in worldwide?

3G Electric supplies 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 for pricing and lead time on this 5-pack heavy-wall insert.

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

Installation requires tapping the hole to the specified compatible tap size (9/16"-12), then driving the insert into the tapped hole using a standard installation tool. The self-locking feature engages as the insert is seated, providing vibration-resistant threads without additional 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.

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