OSG Screw Thread Insert STI Tap: Spiral Fute, 3/8"-24 UNF, H3 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap (MPN 8015900) is a spiral-flute tap designed for 3/8"-24 UNF threads, featuring an H3 / 2B-3B tolerance class and a bottoming chamfer with 3 flutes. 3G Electric interprets your…
SKU 3G-OTH-273368
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Product Description
The OSG Screw Thread Insert STI Tap (MPN 8015900) is a spiral-flute tap designed for 3/8"-24 UNF threads, featuring an H3 / 2B-3B tolerance class and a bottoming chamfer with 3 flutes. 3G Electric interprets your demand for this precision threading tool, sourcing it from OSG and supporting your application with specialist expertise across 14 industrial departments.
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 pre-drilled holes for screw thread inserts. It is designed for bottoming chamfer applications, allowing threading close to the bottom of blind holes. Common in aerospace, automotive, and general manufacturing where strong, wear-resistant threads are required.
What are the specifications of the OSG STI tap 8015900?
The OSG STI tap 8015900 has a UNF thread size of 3/8"-24, with a tolerance class of H3 / 2B-3B. It features 3 spiral flutes and a bottoming chamfer. This design is optimized for threading holes that will accept screw thread inserts, providing accurate thread formation in harder 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 times on the OSG 8015900 spiral-flute tap and other threading tools.
How to select the correct OSG STI tap for a job?
To select the correct OSG STI tap, match the thread size and pitch to your insert requirements. For blind holes, choose a bottoming chamfer tap like the 8015900. Ensure the tap tolerance (H3 / 2B-3B) aligns with your desired thread class. Always use proper cutting fluid and tap drill size per OSG recommendations.
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3G Electric supplies OSG spiral-flute sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
