OSG Screw Thread Insert STI Tap: Spiral Fute, 7/8"-9 UNC, H5 / 2B-3B, 4 Flute (MPN 31503701)
SKU 3G-OTH-281102
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Frequently Asked Questions
What is an OSG spiral-flute STI tap used for?
An OSG spiral-flute STI tap is used to cut internal threads in multiple materials for screw thread inserts. It creates threads that accept helical coil inserts, commonly in aerospace, automotive, and industrial maintenance applications where thread repair or reinforcement is needed.
What are the specifications of the OSG STI tap 31503701?
The OSG STI tap model 31503701 has a thread size of 7/8"-9 UNC, with H5 tolerance for 2B/3B class fit. It features a spiral flute design with 4 flutes, suitable for through-hole threading in multiple materials. The manufacturer part number is 31503701.
Where to buy OSG STI taps worldwide?
3G Electric supplies OSG STI taps like model 31503701 to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this spiral-flute tap for thread insert applications.
How to select the correct STI tap size for a thread insert?
Select an STI tap that matches the thread insert's nominal size and pitch, such as 7/8"-9 UNC. The tap tolerance (e.g., H5) should align with the desired class of fit (2B or 3B). OSG taps are designed for multiple materials; verify material compatibility for optimal thread quality.
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Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute sti taps for multiple materials. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
