HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1"-8 UNC, H4 / 3B, 4 Flute
The HELI-COIL Screw Thread Insert STI Tap (Straight Flute, MPN 8187-16) is a general-purpose tap for 1"-8 UNC threads, with H4 / 3B tolerance and a plug chamfer. It features 4 flutes and is designed for installing…
SKU 3G-OTH-261997
Also listed as: 818716 · 8187 16
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 8187-16) is a general-purpose tap for 1"-8 UNC threads, with H4 / 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, sources it across our 14 industrial departments, and supports your application with specialist depth in fastening and threading solutions.
Frequently Asked Questions
What is the HELI-COIL Screw Thread Insert STI Tap used for?
The HELI-COIL STI Tap is used to cut internal threads for installing HELI-COIL screw thread inserts in metal components. It is commonly applied 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 STI Tap 8187-16?
The HELI-COIL STI Tap model 8187-16 is a straight flute tap with a 1"-8 UNC thread size, H4/3B tolerance, 4 flutes, and a plug chamfer. It is designed for general-purpose threading of holes to accept HELI-COIL inserts, ensuring precise thread fit and durability.
Where to buy the HELI-COIL STI Tap 8187-16 worldwide?
You can source the HELI-COIL STI Tap 8187-16 from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive the correct tap for your threading needs.
How to select the correct HELI-COIL STI Tap for a repair job?
To select the correct HELI-COIL STI Tap, match the tap's thread size and pitch to the insert you plan to install. For the 8187-16, use it with 1"-8 UNC HELI-COIL inserts. Ensure the tap's tolerance (H4/3B) aligns with your material and thread class requirements for optimal fit.
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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.
