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OSG Screw Thread Insert STI Tap: Spiral Fute, 5/16"-24 UNF, H2 / 2B-3B - Spiral-Flute STI Taps for Multiple Materials
OSGSpiral-Flute STI Taps for Multiple Materials

OSG Screw Thread Insert STI Tap: Spiral Fute, 5/16"-24 UNF, H2 / 2B-3B

SKU 3G-OTH-281130

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Fute, 5/16"-24 UNF, H2 / 2B-3B
Category
Spiral-Flute STI Taps for Multiple Materials
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Technical Specifications

OSG
Manufacturer Part Number
31501101
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

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 aluminum, steel, and cast iron.

What are the specifications of the OSG 31501101 STI Tap?

The OSG 31501101 is a spiral-flute STI tap with a 5/16"-24 UNF thread size, H2 / 2B-3B tolerance, and 3 flutes. It is designed for threading multiple materials and has a manufacturer part number of 31501101. The spiral flute design aids chip evacuation in blind-hole applications.

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 on the OSG 31501101 or other OSG threading tools.

How to select the correct OSG STI Tap for thread inserts?

Select an OSG STI Tap based on the thread insert size and material. For a 5/16"-24 UNF insert, use the 31501101 tap with H2 / 2B-3B tolerance. Ensure the tap matches the insert's thread class and consider spiral-flute taps for blind holes to improve chip removal. Always follow OSG's recommended speeds and feeds.

Used in

Common applications for OSG
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

OSG 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.

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