OSG Screw Thread Insert STI Tap: Spiral Fute, 3/8"-16 UNC, H3 / 2B-3B
SKU 3G-OTH-281180
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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 thread repair or reinforcement is needed.
What are the specifications of the OSG 31501201 STI Tap?
The OSG 31501201 is a spiral-flute STI tap with size 3/8"-16 UNC, thread class H3 / 2B-3B, and 3 flutes. It is designed for threading holes that will accept screw thread inserts in multiple materials.
Where to buy OSG STI taps in 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.
How to select the correct OSG STI tap size?
To select the correct OSG STI tap, match the tap size to the screw thread insert's nominal thread size and pitch. For example, the 31501201 is for 3/8"-16 UNC inserts. Always verify the thread class (H3 / 2B-3B) matches your application requirements.
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.















