OSG Screw Thread Insert STI Tap: Spiral Point, 7/8"-9 UNC, H5 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap for multiple materials, specified as 7/8"-9 UNC with H5 / 2B-3B tolerance, 4 flutes, and a plug chamfer (MPN 31403708). 3G Electric interprets this demand and…
SKU 3G-OTH-284689
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Product Description
The OSG Screw Thread Insert STI Tap is a spiral-point tap for multiple materials, specified as 7/8"-9 UNC with H5 / 2B-3B tolerance, 4 flutes, and a plug chamfer (MPN 31403708). 3G Electric interprets this demand and supplies this genuine OSG tool, backed by specialist depth in industrial equipment across 14 departments.
Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
The OSG Screw Thread Insert STI Tap is used to cut internal threads in multiple materials for installing screw thread inserts. It is commonly applied in aerospace, automotive, and general manufacturing where strong, replaceable threads are required in softer base materials.
What are the specifications of the OSG 31403708 STI Tap?
The OSG 31403708 STI Tap has a UNC thread size of 7/8"-9, with an H5 / 2B-3B tolerance class. It features a spiral-point design, 4 flutes, and a plug chamfer. This tap is designed for through-hole threading in multiple materials.
Where to buy OSG STI Taps worldwide?
You can source OSG STI Taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG 31403708 tap.
How to select the correct STI tap size for a 7/8"-9 UNC insert?
To select the correct STI tap, match the tap's thread size and pitch to the insert's specifications. For a 7/8"-9 UNC insert, use an STI tap with the same designation. The OSG 31403708 is a spiral-point tap with H5 tolerance, suitable for producing 2B-3B class threads.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point sti taps for multiple materials. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
