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HELI-COIL Thread Repair Kit: 6 Inserts, 54 Pieces, 3 # of Sizes, Tanged Tang Style - Helical Insert Assortments
HELI-COILHelical Insert Assortments

HELI-COIL Thread Repair Kit: 6 Inserts, 54 Pieces, 3 # of Sizes, Tanged Tang Style

The HELI-COIL Thread Repair Kit (SKU 4CZD5, MPN 4934) is a 54-piece helical insert assortment with 3 sizes, tanged tang style, and free-running design. It includes 18-8 stainless steel inserts for 7/16"-14 coarse…

SKU 3G-OTH-526539

Brand
HELI-COIL
Item
Thread Repair Kit: 6 Inserts, 54 Pieces, 3 # of Sizes, Tanged Tang Style
Category
Helical Insert Assortments
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Technical Specifications

HELI-COIL
Manufacturer Part Number
4934
Type
3 # of Sizes, Tanged Tang Style, Free-Running
Pieces
54
Finish Type
Plain
Thread Type
Coarse
STI Tap Size
7/16"-14
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
Insert Types Included
Helical Inserts
System of Measurement
Inch
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HELI-COIL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HELI-COIL Thread Repair Kit (SKU 4CZD5, MPN 4934) is a 54-piece helical insert assortment with 3 sizes, tanged tang style, and free-running design. It includes 18-8 stainless steel inserts for 7/16"-14 coarse threads, right-hand direction, compatible with metal substrates in inch measurements.

Frequently Asked Questions

What is a HELI-COIL thread repair kit used for?

A HELI-COIL thread repair kit restores damaged internal threads in metal components. It uses 18-8 stainless steel helical inserts to create strong, wear-resistant threads in applications like automotive, industrial machinery, and equipment maintenance, avoiding costly part replacement.

What are the specifications of the HELI-COIL 4934 thread repair kit?

The HELI-COIL 4934 kit includes 54 pieces across 3 sizes, with tanged tang, free-running helical inserts. It uses 18-8 stainless steel, STI tap size 7/16"-14, right-hand coarse threads, inch system, and is compatible with metal substrates.

Where to buy a HELI-COIL thread repair kit worldwide?

3G Electric supplies the HELI-COIL 4934 thread repair kit 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 helical insert assortment.

How to select the right HELI-COIL thread repair kit size?

Select a HELI-COIL kit by matching the STI tap size and thread pitch to your damaged hole. For the 4934 kit, use a 7/16"-14 tap. Ensure the substrate is metal and the thread direction (right hand) matches your application. Always verify the insert material grade, such as 18-8 stainless steel.

Used in

Common applications for HELI-COIL
Aerospace engine repair — HELI-COIL STI taps for M12x1.75 metric threads in aluminum alloy components
Automotive transmission rebuild — HELI-COIL STI taps for 7/16-14 UNC threads in cast iron housings
Industrial pump maintenance — HELI-COIL STI taps for #10-32 UNF threads in stainless steel pump bodies
Hydraulic cylinder repair — HELI-COIL STI taps for M6x1 metric threads in steel cylinder heads
General manufacturing — HELI-COIL STI taps for 9/16-18 UNF threads in machinery base plates

HELI-COIL Products

3G Electric supplies HELI-COIL helical insert assortments. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, Stainless Steel, Plain, Plain, 6 PK (MPN R474-4). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M10-1.00; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Tensile Strength: 200,000 to 250,000 psi; Thread Type: Fine.
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HELI-COIL Helical Insert: Tanged Tang Style, Free-Running, Stainless Steel, Plain, Plain, 6 PK (MPN R474-4). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M10-1.00; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Tensile Strength: 200,000 to 250,000 psi; Thread Type: Fine.
HELI-COIL Helical Insert: Free-Running, Steel, Black Oxide, Steel, Black Oxide, 6 PK (MPN R5326-14L-6). Key specifications — Material Grade/Class: 12L14; Thread Direction: Right Hand; STI Tap Size: M14-1.25; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Tensile Strength: 200,000 to 250,000 psi; Thread Type: Fine.
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HELI-COIL Helical Insert: Free-Running, Steel, Black Oxide, Steel, Black Oxide, 6 PK (MPN R5326-14L-6). Key specifications — Material Grade/Class: 12L14; Thread Direction: Right Hand; STI Tap Size: M14-1.25; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Tensile Strength: 200,000 to 250,000 psi; Thread Type: Fine.
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 4 Inserts, 60 Pieces, 3 # of Sizes (MPN 4937-150). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M5-0.80; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Coarse.
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HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 4 Inserts, 60 Pieces, 3 # of Sizes (MPN 4937-150). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M5-0.80; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 4 Inserts, 60 Pieces, 3 # of Sizes (MPN 4937-125). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M8-1.25; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Coarse.
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HELI-COIL Thread Repair Kit: Tanged Tang Style, Free-Running, 4 Inserts, 60 Pieces, 3 # of Sizes (MPN 4937-125). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: M8-1.25; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Thread Type: Coarse.
HELI-COIL Thread Repair Kit: 6 Inserts, 60 Pieces, 3 # of Sizes, Tanged Tang Style, Free-Running (MPN 4936). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 1/4"-28; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Fine.
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HELI-COIL Thread Repair Kit: 6 Inserts, 60 Pieces, 3 # of Sizes, Tanged Tang Style, Free-Running (MPN 4936). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 1/4"-28; Compatible Material: Metal; System of Measurement: Inch; Brand: HELI-COIL; Thread Type: Fine.