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OSG Screw Thread Insert STI Tap: Spiral Fute, 3/4"-10 UNC, H5 / 2B-3B, 4 Flute (MPN 31503308) - Spiral-Flute STI Taps for Multiple Materials
OSGSpiral-Flute STI Taps for Multiple Materials

OSG Screw Thread Insert STI Tap: Spiral Fute, 3/4"-10 UNC, H5 / 2B-3B, 4 Flute (MPN 31503308)

SKU 3G-OTH-281117

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Fute, 3/4"-10 UNC, H5 / 2B-3B, 4 Flute
Category
Spiral-Flute STI Taps for Multiple Materials
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Technical Specifications

OSG
Manufacturer Part Number
31503308
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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 softer metals or plastics.

What are the specifications of the OSG Screw Thread Insert STI Tap?

This OSG tap has a 3/4"-10 UNC thread size, H5 tolerance for 2B-3B class fit, and a spiral-flute design with 4 flutes. The manufacturer part number is 31503308. It is designed for threading multiple materials including steel, aluminum, and cast iron.

Where to buy the OSG Screw Thread Insert STI Tap worldwide?

You can source the OSG Screw Thread Insert STI Tap 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 for my application?

To select the correct OSG STI tap, match the thread size and pitch to your insert requirements. For this 3/4"-10 UNC tap, ensure your material is suitable for spiral-flute taps, which excel in chip evacuation. Consult OSG's technical data for optimal 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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