OSG Screw Thread Insert STI Tap: Spiral Fute, 5/16"-18 UNC, H3 / 2B-3B
SKU 3G-OTH-281157
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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, wear-resistant threads are required in softer base materials.
What are the specifications of the OSG 31500908 STI Tap?
The OSG 31500908 is a spiral-flute STI tap with thread size 5/16"-18 UNC, H3 / 2B-3B tolerance, and 3 flutes. It is designed for tapping holes that will accept screw thread inserts, providing accurate thread fit 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 31500908.
How to select the correct OSG STI Tap size?
To select the correct OSG STI Tap, match the tap thread size and pitch to the insert you plan to install. For example, the 5/16"-18 UNC tap is used with corresponding 5/16"-18 thread inserts. Verify the H tolerance class (e.g., H3) matches your required thread fit class (2B-3B).
Used in
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.
