We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

HELI-COIL Screw-Locking Tangless Helical Insert, 1/4"-20, Plain, 18-8, 1,000 PK - Screw-Locking Tangless Helical Inserts
HELI-COILScrew-Locking Tangless Helical Inserts

HELI-COIL Screw-Locking Tangless Helical Insert, 1/4"-20, Plain, 18-8, 1,000 PK

The HELI-COIL Tangless Tang Style Helical Insert is a screw-locking, plain finish insert with a 1/4"-20 coarse thread and a tensile strength of 200,000 to 250,000 psi. Made from 18-8 material, it is compatible with…

SKU 3G-OTH-532446

Also listed as: T35854C250S · T3585 4C250S

Brand
HELI-COIL
Item
Screw-Locking Tangless Helical Insert, 1/4"-20, Plain, 18-8, 1,000 PK
Category
Screw-Locking Tangless Helical Inserts
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

HELI-COIL
Manufacturer Part Number
T3585-4C250S
Type
Screw-Locking, Plain, 1,000 PK
Tensile Strength
200,000 to 250,000 psi
Finish Type
Plain
Thread Size
1/4"-20
Thread Type
Coarse
STI Tap Size
1/4"-28
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
System of Measurement
Inch

Technical Documents

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

Product Description

The HELI-COIL Tangless Tang Style Helical Insert is a screw-locking, plain finish insert with a 1/4"-20 coarse thread and a tensile strength of 200,000 to 250,000 psi. Made from 18-8 material, it is compatible with metal and supplied in a 1,000 PK. 3G Electric interprets customer demand and delivers genuine industrial equipment across 14 departments — and far more — with specialist depth in combustion, pumps and controls as an authorised distributor.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a HELI-COIL Tangless Helical Insert used for?

A HELI-COIL Tangless Helical Insert repairs or reinforces threads in metal components, providing a durable 18-8 stainless steel thread with a tensile strength of 200,000 to 250,000 psi. The screw-locking design resists vibration loosening, making it ideal for demanding industrial applications.

What are the specifications of the HELI-COIL T3585-4C250S insert?

The HELI-COIL T3585-4C250S is a tangless, screw-locking helical insert with a 1/4"-20 coarse thread, plain finish, and 18-8 material grade. It requires an STI tap size of 1/4"-28, has a tensile strength of 200,000 to 250,000 psi, and is supplied in a 1,000-piece pack.

Where to buy HELI-COIL helical inserts worldwide?

3G Electric supplies genuine HELI-COIL helical inserts worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver the T3585-4C250S and other part numbers to any location, ensuring compliance with international shipping requirements.

How to install a tangless helical insert?

To install a tangless helical insert, drill and tap the hole to the specified STI tap size (1/4"-28 for this insert), then use a tangless installation tool to wind the insert into the threaded hole. No tang removal is needed, simplifying installation and reducing debris in the assembly.

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 tangless 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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