HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M3x0.5 Metric, D1 / 4H, 3 Flute
The HELI-COIL Screw Thread Insert STI Tap: Straight Flute is a general-purpose STI tap designed for M3x0.5 metric threads. It features a D1 / 4H tolerance, 3 flutes, and a plug chamfer, with manufacturer part number…
SKU 3G-OTH-262085
Need installation or engineering help?
Ask a question
Product Description
The HELI-COIL Screw Thread Insert STI Tap: Straight Flute is a general-purpose STI tap designed for M3x0.5 metric threads. It features a D1 / 4H tolerance, 3 flutes, and a plug chamfer, with manufacturer part number 4687-3.
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. It is designed for general-purpose tapping in metal components, commonly used in automotive, aerospace, and industrial repair applications to restore or reinforce threaded holes.
What are the specifications of the HELI-COIL STI Tap 4687-3?
The HELI-COIL STI Tap 4687-3 has an M3x0.5 metric thread size, D1 / 4H tolerance, 3 flutes, and a plug chamfer. It is a straight-flute, general-purpose tap manufactured by HELI-COIL. The D1 / 4H tolerance ensures precise thread fit for standard insert installation.
Where to buy HELI-COIL STI Tap 4687-3 worldwide?
You can source the HELI-COIL STI Tap 4687-3 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this HELI-COIL tap.
How to select the correct HELI-COIL STI Tap for M3 threads?
To select the correct HELI-COIL STI Tap for M3 threads, ensure the tap matches the insert's thread size (M3x0.5) and tolerance class (D1 / 4H). Use a plug chamfer tap for through holes or blind holes with sufficient depth. Always refer to the HELI-COIL installation guidelines for proper tap selection.
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.















