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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 3/4"-10 UNC, H5 / 2B, 4 Flute - General Purpose STI Taps
HELI-COILGeneral Purpose STI Taps

HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 3/4"-10 UNC, H5 / 2B, 4 Flute

SKU 3G-OTH-262096

Brand
HELI-COIL
Item
Screw Thread Insert STI Tap: Straight Fute, 3/4"-10 UNC, H5 / 2B, 4 Flute
Category
General Purpose STI Taps
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Technical Specifications

HELI-COIL
Manufacturer Part Number
18187-12
Type
H5 / 2B, Plug Chamfer
Flute
4
UNC
3/4"-10
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Technical Documents

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

Frequently Asked Questions

What is a HELI-COIL STI tap used for?

A HELI-COIL STI tap cuts threads for installing screw thread inserts in metal parts. It is used in automotive, aerospace, and industrial maintenance to repair stripped threads or strengthen threaded holes in softer materials like aluminum.

What are the specifications of the HELI-COIL 18187-12 STI tap?

This HELI-COIL STI tap has a 3/4"-10 UNC thread, H5 / 2B tolerance, 4 flutes, and a plug chamfer. It is designed for general-purpose thread repair and insert installation in industrial applications.

Where to buy HELI-COIL STI taps worldwide?

3G Electric supplies HELI-COIL STI taps worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this 3/4"-10 UNC tap (MPN 18187-12).

How to select the correct STI tap for a thread repair?

Match the STI tap size to the insert's thread specification. For a 3/4"-10 UNC insert, use a 3/4"-10 STI tap with H5 tolerance. Ensure the tap has a plug chamfer for through-hole repairs and use cutting fluid for clean threads.

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 general purpose sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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