HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 3/4"-10 UNC, H5 / 2B, 4 Flute
The HELI-COIL Screw Thread Insert STI Tap (Straight Flute, MPN 18187-12) is a general-purpose tap for 3/4"-10 UNC threads, with H5 / 2B tolerance and a plug chamfer. It features 4 flutes and is designed for use with…
SKU 3G-OTH-262096
Also listed as: 1818712 · 18187 12
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
Need installation or engineering help?
Ask a question
Product Description
The HELI-COIL Screw Thread Insert STI Tap (Straight Flute, MPN 18187-12) is a general-purpose tap for 3/4"-10 UNC threads, with H5 / 2B tolerance and a plug chamfer. It features 4 flutes and is designed for use with HELI-COIL screw thread inserts.
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-COILHELI-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.
