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E-Z LOK Self Locking Thread Insert: Heavy Wall, 3/4"-10 Int Thrd Sz, 1"-8 Ext Thrd Sz - Heavy Wall Self-Locking Inserts
E-Z LOKHeavy Wall Self-Locking Inserts

E-Z LOK Self Locking Thread Insert: Heavy Wall, 3/4"-10 Int Thrd Sz, 1"-8 Ext Thrd Sz

The E-Z LOK Self Locking Thread Insert is a heavy-wall, inch-system steel insert (5-pack) with a 1"-8 external thread size and a 3/4"-10 internal thread size, both coarse thread type. It is compatible with a #1-8 tap…

SKU 3G-OTH-534173

Brand
E-Z LOK
Item
Self Locking Thread Insert: Heavy Wall, 3/4"-10 Int Thrd Sz, 1"-8 Ext Thrd Sz
Category
Heavy Wall Self-Locking Inserts
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Technical Specifications

E-Z LOK
Manufacturer Part Number
329-12-PK5
Type
Steel, 5 PK
Wall Type
Heavy Wall
Ext Thrd Sz
1"-8
Int Thrd Sz
3/4"-10
Thread Type
Coarse
Compatible Tap Size
#1-8
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 steel insert (5-pack) with a 1"-8 external thread size and a 3/4"-10 internal thread size, both coarse thread type. It is compatible with a #1-8 tap and features external thread fit 2A and internal thread fit 2B. 3G Electric interprets this demand and sources the genuine OEM part (MPN 329-12-PK5) across 14 industrial departments, with specialist depth in combustion, pumps and controls as an authorised distributor.

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 threads in metal assemblies. The heavy-wall steel insert (3/4"-10 internal, 1"-8 external) provides a permanent, vibration-resistant thread in industrial equipment across machining, hydraulics, and power transmission applications.

What are the specifications of E-Z LOK 329-12-PK5?

The E-Z LOK 329-12-PK5 is a 5-pack of heavy-wall steel thread inserts. External thread size is 1"-8 (2A fit), internal thread size is 3/4"-10 (2B fit), both coarse inch threads. Compatible tap size is #1-8. System of measurement is inch.

Where to buy E-Z LOK thread inserts worldwide?

3G Electric supplies genuine E-Z LOK thread inserts (MPN 329-12-PK5) to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial solutions provider, we source across 14 departments including machining and power transmission.

How to install E-Z LOK heavy wall thread inserts?

Install E-Z LOK heavy wall inserts by drilling to the specified tap size (#1-8), tapping the hole with the compatible tap, then driving the insert flush using the installation tool. The self-locking feature engages upon insertion. Follow standard thread insert best practices for torque and depth.

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, 5/8"-11 Int Thrd Sz, 7/8"-9 Ext Thrd Sz, Steel, 5 PK (MPN 329-10-PK5). Key specifications — Compatible Tap Size: 7/8"-9; 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, 5/8"-11 Int Thrd Sz, 7/8"-9 Ext Thrd Sz, Steel, 5 PK (MPN 329-10-PK5). Key specifications — Compatible Tap Size: 7/8"-9; 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, 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, 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, 1/2"-13 Int Thrd Sz, M16-2.00 Ext Thrd Sz, 5 PK (MPN 550-8-PK5). Key specifications — Compatible Tap Size: M16-2.00; Internal Thread Fit: 2B; System of Measurement: Inch/Metric; Thread Type: UNC Internal/Metric External; Wall Type: Heavy Wall; Drill Bit Size: 14 mm; External Thread Fit: 2A.
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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, 5 PK (MPN 303-8-PK5). Key specifications — Compatible Tap Size: 3/4"-10; Internal Thread Fit: 2B; System of Measurement: Inch; Thread Type: Coarse; Wall Type: Heavy Wall; External Thread Fit: 2A.
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