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OSG Spiral-Flute STI Tap, 1"-8 UNC, H6 / 2B-3B, 4 Flute, 31504101 - Spiral-Flute STI Taps for Multiple Materials
OSGSpiral-Flute STI Taps for Multiple Materials

OSG Spiral-Flute STI Tap, 1"-8 UNC, H6 / 2B-3B, 4 Flute, 31504101

OSG Spiral-Flute STI Taps for Multiple Materials.

SKU 3G-OTH-281094

Brand
OSG
Item
Spiral-Flute STI Tap, 1"-8 UNC, H6 / 2B-3B, 4 Flute, 31504101
Category
Spiral-Flute STI Taps for Multiple Materials
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
31504101

Technical Documents

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

OSG Spiral-Flute STI Taps for Multiple Materials.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
Spiral-flute STI tap for cutting internal threads in multiple materials to accept screw thread inserts. Features a 1"-8 UNC thread size, H4 / 2B-3B tolerance, and 4-flute design. Suitable for general manufacturing, automotive, and aerospace applications requiring thread repair or reinforcement
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Spiral-flute STI tap for cutting internal threads in multiple materials to accept screw thread inserts. Features a 1"-8 UNC thread size, H4 / 2B-3B tolerance, and 4-flute design. Suitable for general manufacturing, automotive, and aerospace applications requiring thread repair or reinforcement
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Spiral-flute STI tap for cutting internal threads in multiple materials to accept screw thread inserts. Features a 1"-12 UNF thread size, H6 / 2B-3B tolerance, and 4-flute design. Suitable for applications requiring thread repair or reinforcement
Spiral-flute STI tap for cutting internal threads in multiple materials to accept screw thread inserts. Features a 1"-12 UNF thread size, H6 / 2B-3B tolerance, and 4-flute design. Suitable for applications requiring strong threads in softer base materials
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Spiral-flute STI tap for cutting internal threads in multiple materials to accept screw thread inserts. Features a 1"-12 UNF thread size, H6 / 2B-3B tolerance, and 4-flute design. Suitable for applications requiring strong threads in softer base materials
OSG Screw Thread Insert STI Tap: Spiral Fute, 1"-8 UNC, H6 / 2B-3B, 4 Flute, V Coated Powdered Metal (MPN 31504108)
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OSG Screw Thread Insert STI Tap: Spiral Fute, 1"-8 UNC, H6 / 2B-3B, 4 Flute, V Coated Powdered Metal (MPN 31504108)
Spiral-flute STI tap for cutting internal threads in multiple materials to accept screw thread inserts. Features 7/8"-9 UNC thread size, H3 / 2B-3B tolerance, and 4 flutes. Spiral flute design aids chip evacuation in blind-hole applications
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Spiral-flute STI tap for cutting internal threads in multiple materials to accept screw thread inserts. Features 7/8"-9 UNC thread size, H3 / 2B-3B tolerance, and 4 flutes. Spiral flute design aids chip evacuation in blind-hole applications
Spiral-flute STI tap for cutting internal threads in multiple materials to accept screw thread inserts. Features 9/16"-12 UNC thread size, H4 / 2B-3B tolerance, and 4 flutes. Suitable for applications requiring strong threads in softer base materials
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Spiral-flute STI tap for cutting internal threads in multiple materials to accept screw thread inserts. Features 9/16"-12 UNC thread size, H4 / 2B-3B tolerance, and 4 flutes. Suitable for applications requiring strong threads in softer base materials

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Spiral-flute STI tap for cutting internal threads in multiple materials to accept helical wire thread inserts. Features #10-32 UNF thread size, H2 / 2B-3B tolerance, and 3-flute design. Suitable for applications requiring thread repair or reinforcement in aluminum, steel, and cast iron
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