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HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, #10-32 Thread Size - Screw-Locking Tanged Helical Inserts
HELI-COILScrew-Locking Tanged Helical Inserts

HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, #10-32 Thread Size

HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, #10-32 Thread Size, 100 PK (MPN A3591-3CNW285). These 18-8 stainless steel inserts feature a Dry Film Lubricant finish, fine threads, and a tensile strength…

SKU 3G-OTH-528835

Brand
HELI-COIL
Item
Helical Insert: Tanged Tang Style, Screw-Locking, #10-32 Thread Size
Category
Screw-Locking Tanged Helical Inserts
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Technical Specifications

HELI-COIL
Manufacturer Part Number
A3591-3CNW285
Type
Screw-Locking, #10-32 Thread Size, 100 PK
Tensile Strength
200,000 to 250,000 psi
Finish Type
Dry Film Lubricant
Thread Type
Fine
STI Tap Size
#10-32
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
System of Measurement
Inch
View Full Spec Sheet

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HELI-COIL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, #10-32 Thread Size, 100 PK (MPN A3591-3CNW285). These 18-8 stainless steel inserts feature a Dry Film Lubricant finish, fine threads, and a tensile strength of 200,000 to 250,000 psi. Designed for right-hand thread repair in metal, they require an STI Tap Size of #10-32 and are supplied in inch-system packaging.

Frequently Asked Questions

What is a HELI-COIL screw-locking helical insert used for?

A HELI-COIL screw-locking helical insert repairs or reinforces internal threads in metal components. The screw-locking feature resists vibration loosening, making it ideal for automotive, aerospace, and industrial applications where joint integrity is critical.

What are the specifications of the HELI-COIL A3591-3CNW285 insert?

This HELI-COIL insert has a #10-32 fine thread, right-hand direction, and 18-8 stainless steel construction with a Dry Film Lubricant finish. Tensile strength ranges from 200,000 to 250,000 psi. It requires an STI tap size of #10-32 and comes in a 100-pack for inch-system metal repair.

Where to buy HELI-COIL inserts in worldwide?

3G Electric supplies HELI-COIL inserts worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the A3591-3CNW285 or other HELI-COIL part numbers.

How to install a HELI-COIL tanged screw-locking insert?

Drill out the damaged thread to the specified size, tap the hole using the correct STI tap (#10-32 for this insert), then use a tang-style installation tool to wind the insert into place. After installation, break off the tang with a punch. Always follow HELI-COIL's published instructions for best results.

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 screw-locking tanged helical inserts. 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, Screw-Locking, M6-1.00 Thread Size, Plain, 100 PK (MPN A4184-6EN120). Key specifications — Material Grade/Class: Nitronic 60; Thread Direction: Right Hand; STI Tap Size: M6-1.00; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Drill Bit Size: 6.25mm; Tensile Strength: 200,000 psi.
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HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, M6-1.00 Thread Size, Plain, 100 PK (MPN A4184-6EN120). Key specifications — Material Grade/Class: Nitronic 60; Thread Direction: Right Hand; STI Tap Size: M6-1.00; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Drill Bit Size: 6.25mm; Tensile Strength: 200,000 psi.
HELI-COIL Helical Insert: Tanged Tang Style, Screw-Locking, 1 1/4"-12 Thread Size, Plain, 100 PK (MPN A3591-20CN1250). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: 1-1/4"-12; Compatible Material: Metal; System of Measurement: Inch; 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, Screw-Locking, M4-0.70 Thread Size, 100 PK (MPN A4184-4CNW060). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M4-0.70; Compatible Material: Metal; System of Measurement: Metric; Brand: HELI-COIL; Drill Bit Size: 4.2mm; Tensile Strength: 200,000 to 250,000 psi.
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