OSG Screw Thread Insert STI Tap: Spiral Fute, 3/8"-16 UNC, H3 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap (SKU 33ZF51, MPN 8015400) is a spiral-flute tap for 3/8"-16 UNC threads, with a bottoming chamfer and H3 / 2B-3B tolerance class. It features 3 flutes and is designed for…
SKU 3G-OTH-273374
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Product Description
The OSG Screw Thread Insert STI Tap (SKU 33ZF51, MPN 8015400) is a spiral-flute tap for 3/8"-16 UNC threads, with a bottoming chamfer and H3 / 2B-3B tolerance class. It features 3 flutes and is designed for thread-locking insert installation. 3G Electric interprets demand and delivers this genuine industrial tool across 14 departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.
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 commonly applied in aerospace, automotive, and general manufacturing where strong, wear-resistant threads are required in softer materials like aluminum or cast iron.
What are the specifications of the OSG STI tap 8015400?
The OSG STI tap 8015400 has a thread size of 3/8"-16 UNC, a thread limit of H3 / 2B-3B, 3 flutes, and a bottoming chamfer. It is a spiral-flute design for efficient chip evacuation. The manufacturer part number is 8015400.
Where to buy OSG taps in worldwide?
You can source OSG 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 8015400 STI tap.
How to select the correct STI tap for a thread insert?
To select the correct STI tap, match the tap thread size and pitch to the insert's internal thread specification. For example, the OSG 8015400 is for 3/8"-16 UNC inserts. Ensure the tap's thread limit (e.g., H3 / 2B-3B) aligns with the required class of fit for your application.
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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.
