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E-Z LOK Self Locking Thread Insert: Heavy Wall, 1/2"-13 Int Thrd Sz, 3/4"-10 Ext Thrd Sz - Heavy Wall Self-Locking Inserts
E-Z LOKHeavy Wall Self-Locking Inserts

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 (MPN 303-8-PK5). It features coarse threads, a 2A external…

SKU 3G-OTH-534203

Brand
E-Z LOK
Item
Self Locking Thread Insert: Heavy Wall, 1/2"-13 Int Thrd Sz, 3/4"-10 Ext Thrd Sz
Category
Heavy Wall Self-Locking Inserts
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Technical Specifications

E-Z LOK
Manufacturer Part Number
303-8-PK5
Type
5 PK
Wall Type
Heavy Wall
Ext Thrd Sz
3/4"-10
Int Thrd Sz
1/2"-13
Thread Type
Coarse
Compatible Tap Size
3/4"-10
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 1/2"-13 internal thread and a 3/4"-10 external thread, supplied in a 5-pack (MPN 303-8-PK5). It features coarse threads, a 2A external thread fit, a 2B internal thread fit, and is compatible with a 3/4"-10 tap.

Frequently Asked Questions

What is an 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 strength for demanding industrial applications across machining, power transmission, and material handling equipment. 3G Electric supplies these inserts globally.

What are the specifications of the E-Z LOK 303-8-PK5 thread insert?

The E-Z LOK 303-8-PK5 is a heavy-wall, inch-system insert with a 1/2"-13 internal thread and a 3/4"-10 external thread. It has coarse threads, a 2A external thread fit, a 2B internal thread fit, and is compatible with a 3/4"-10 tap. Supplied in a 5-pack.

Where to buy E-Z LOK thread inserts worldwide?

3G Electric supplies E-Z LOK Self Locking Thread Inserts to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact our team for a quote on the 303-8-PK5 or other heavy-wall inserts. We source genuine industrial components across 14 departments.

How to install an E-Z LOK heavy wall thread insert?

Installation requires tapping the hole to the specified compatible tap size (3/4"-10 for this insert), 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 to ensure a secure fit.

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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E-Z LOK Self Locking Thread Insert: Heavy Wall, M6-1.00 Int Thrd Sz, M10-1.50 Ext Thrd Sz, 5 PK (MPN 450-6-PK5). Key specifications — Compatible Tap Size: M10-1.50; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Metric; Wall Type: Heavy Wall; External Thread Fit: 6G.
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E-Z LOK Self Locking Thread Insert: Heavy Wall, M6-1.00 Int Thrd Sz, M10-1.50 Ext Thrd Sz, 5 PK (MPN 450-6-PK5). Key specifications — Compatible Tap Size: M10-1.50; Internal Thread Fit: 6H; System of Measurement: Metric; Thread Type: Metric; Wall Type: Heavy Wall; External Thread Fit: 6G.
E-Z LOK Self Locking Thread Insert: Heavy Wall, 7/16"-14 Int Thrd Sz, 5/8"-11 Ext Thrd Sz, 5 PK (MPN 329-7-PK5). Key specifications — Compatible Tap Size: 5/8"-11; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Heavy Wall; External Thread Fit: 2A.
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E-Z LOK Self Locking Thread Insert: Heavy Wall, 7/16"-14 Int Thrd Sz, 5/8"-11 Ext Thrd Sz, 5 PK (MPN 329-7-PK5). Key specifications — Compatible Tap Size: 5/8"-11; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Heavy Wall; External Thread Fit: 2A.
E-Z LOK Self Locking Thread Insert: Heavy Wall, 3/8"-16 Int Thrd Sz, 9/16"-12 Ext Thrd Sz, 10 PK (MPN 329-6-PK10). Key specifications — Compatible Tap Size: 9/16"-12; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Heavy Wall; External Thread Fit: 2A.
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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, 10 PK (MPN 329-6-PK10). Key specifications — Compatible Tap Size: 9/16"-12; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Heavy Wall; External Thread Fit: 2A.
E-Z LOK Self Locking Thread Insert: Heavy Wall, M14-2.00 Int Thrd Sz, 7/8"-9 Ext Thrd Sz, 5 PK (MPN 653-14-PK5). Key specifications — Compatible Tap Size: 7/8"-9; Internal Thread Fit: 2B; System of Measurement: Inch/Metric; Thread Type: Metric Internal/UNC External; Wall Type: Heavy Wall; External Thread Fit: 2A.
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E-Z LOK Self Locking Thread Insert: Heavy Wall, #8-32 Int Thrd Sz, 5/16"-18 Ext Thrd Sz, 10 PK (MPN 329-008-PK10). Key specifications — Compatible Tap Size: 5/16"-18; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Heavy Wall; External Thread Fit: 2A.
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