HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 5/8"-11 UNC, H3 / 3B, 4 Flute
The HELI-COIL Screw Thread Insert STI Tap (Straight Flute, MPN 8187-10) is a general-purpose tap for 5/8"-11 UNC threads, with H3 / 3B tolerance and a plug chamfer. It features 4 flutes and is designed for installing…
SKU 3G-OTH-262103
Also listed as: 818710 · 8187 10
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.
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Product Description
The HELI-COIL Screw Thread Insert STI Tap (Straight Flute, MPN 8187-10) is a general-purpose tap for 5/8"-11 UNC threads, with H3 / 3B tolerance and a plug chamfer. It features 4 flutes and is designed for installing HELI-COIL screw thread inserts. 3G Electric interprets your demand for this OEM-specified tool and delivers it across 14 industrial departments, with specialist depth in combustion, pumps and controls as an authorised distributor.
Frequently Asked Questions
What is a HELI-COIL STI tap used for?
A HELI-COIL STI tap cuts threads for installing Heli-Coil screw thread inserts. It is used in metalworking and maintenance to repair or reinforce stripped threads in applications like automotive, aerospace, and industrial machinery.
What are the specifications of the HELI-COIL 8187-10 STI tap?
The HELI-COIL 8187-10 is a general purpose STI tap with 5/8"-11 UNC thread, H3 / 3B tolerance, 4 flutes, and a plug chamfer. It is designed for cutting internal threads before inserting Heli-Coil wire thread inserts.
Where to buy HELI-COIL STI taps worldwide?
3G Electric supplies HELI-COIL STI taps like the 8187-10 to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive the correct tap for your thread repair application.
How to select the correct STI tap for Heli-Coil inserts?
Select an STI tap that matches the insert's thread size and pitch, such as 5/8"-11 UNC. Use a plug chamfer for through holes or bottoming for blind holes. Always follow the insert manufacturer's recommended drill size and tap tolerance.
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.
