HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 7/16"-14 UNC, H3 / 3B, 4 Flute
The HELI-COIL Screw Thread Insert STI Tap (Straight Flute, MPN 7CPB) is a general-purpose tap for 7/16"-14 UNC threads, with H3 / 3B tolerance, 4 flutes, and a plug chamfer. 3G Electric interprets demand and delivers…
SKU 3G-OTH-262129
Need installation or engineering help?
Ask a question
Product Description
The HELI-COIL Screw Thread Insert STI Tap (Straight Flute, MPN 7CPB) is a general-purpose tap for 7/16"-14 UNC threads, with H3 / 3B tolerance, 4 flutes, and a plug chamfer. 3G Electric interprets demand and delivers this genuine industrial tool across 14 departments — with specialist depth in combustion, pumps and controls as an authorised distributor — ensuring you get the right solution, not just a catalog.
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 assemblies. It is used across machining, automotive, and industrial maintenance to restore or reinforce stripped threads, ensuring strong, reusable connections in components like engine blocks and hydraulic manifolds.
What are the specifications of the HELI-COIL 7CPB STI tap?
The HELI-COIL 7CPB is a general-purpose STI tap with 7/16"-14 UNC thread, H3/3B tolerance, 4 flutes, and a plug chamfer. It is designed for straight-flute tapping in materials up to 850 °C, compatible with HELI-COIL inserts for reliable thread repair.
Where to buy HELI-COIL STI taps worldwide?
3G Electric supplies HELI-COIL STI taps like the 7CPB to customers worldwide. We handle full logistics, customs clearance, and delivery to your site, sourcing genuine industrial parts across 14 departments including machining and fastening. Contact us for availability and lead time.
How to select the correct STI tap for thread repair?
Select an STI tap matching the insert's thread size and class, such as the HELI-COIL 7CPB for 7/16"-14 UNC. Use a plug chamfer for through holes and a bottoming chamfer for blind holes. Always lubricate during tapping to prevent breakage and ensure thread accuracy.
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.
