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OSG Screw Thread Insert STI Tap: Spiral Fute, 1"-8 UNC, H6 / 2B-3B - Spiral-Flute STI Taps for Multiple Materials
OSGSpiral-Flute STI Taps for Multiple Materials

OSG Screw Thread Insert STI Tap: Spiral Fute, 1"-8 UNC, H6 / 2B-3B

SKU 3G-OTH-281094

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Fute, 1"-8 UNC, H6 / 2B-3B
Category
Spiral-Flute STI Taps for Multiple Materials
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Technical Specifications

OSG
Manufacturer Part Number
31504101
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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 for helical wire thread inserts in multiple materials. It is commonly applied in aerospace, automotive, and general manufacturing where thread repair or reinforcement is needed. The spiral-flute design aids chip evacuation in blind-hole applications.

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

This OSG STI tap has a 1"-8 UNC thread size, H6 / 2B-3B tolerance, and 4 flutes with a spiral-flute design. The manufacturer part number is 31504101. It is designed for cutting threads in multiple materials and is suitable for use with screw thread inserts.

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 on this item.

How to select the correct OSG STI tap for a thread repair job?

To select the correct OSG STI tap, match the tap thread size and pitch to the insert you plan to use. For this 1"-8 UNC tap, ensure the insert is also 1"-8 UNC. The H6 / 2B-3B tolerance indicates the tap produces threads that fit standard 2B or 3B class internal threads. Always verify material compatibility.

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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