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OSG Spiral-Flute STI Tap, #4-40 UNC, H2 / 2B-3B, 2 Flute - Spiral-Flute STI Taps for Multiple Materials
OSGSpiral-Flute STI Taps for Multiple Materials

OSG Spiral-Flute STI Tap, #4-40 UNC, H2 / 2B-3B, 2 Flute

OSG Spiral-Flute STI Taps for Multiple Materials.

SKU 3G-OTH-281172

Brand
OSG
Item
Spiral-Flute STI Tap, #4-40 UNC, H2 / 2B-3B, 2 Flute
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
1715801

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 in multiple materials for installing helical wire thread inserts. 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 #4-40 UNC thread size, H2 / 2B-3B tolerance, and 2 flutes with a spiral-flute design. The manufacturer part number is 1715801. It is designed for threading multiple materials to accept screw thread inserts, ensuring proper fit and thread strength.

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; we supply this OSG tap to customers across industries.

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

Select the OSG STI tap based on the thread insert size and material. For #4-40 UNC inserts, use this tap with H2 / 2B-3B tolerance. Ensure the tap matches the insert manufacturer's specifications. For multiple materials, the spiral-flute design helps chip removal. Always follow standard tapping practices for best results.

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
This spiral-flute STI tap is designed for cutting internal threads in multiple materials to accommodate helical wire thread inserts. It features a #4-40 UNC thread size, H2 / 2B-3B tolerance, and a 2-flute design. Typical applications include repairing or reinforcing threaded holes in aluminum, steel, and cast iron
OSG
This spiral-flute STI tap is designed for cutting internal threads in multiple materials to accommodate helical wire thread inserts. It features a #4-40 UNC thread size, H2 / 2B-3B tolerance, and a 2-flute design. Typical applications include repairing or reinforcing threaded holes in aluminum, steel, and cast iron
This spiral-flute STI tap is designed for cutting internal threads in multiple materials to accept screw thread inserts. It features a #6-32 UNC thread size, H2 / 2B-3B tolerance, and a 3-flute design. Commonly used in applications requiring strong threads in softer base materials
OSG
This spiral-flute STI tap is designed for cutting internal threads in multiple materials to accept screw thread inserts. It features a #6-32 UNC thread size, H2 / 2B-3B tolerance, and a 3-flute design. Commonly used in applications requiring strong threads in softer base materials
Spiral-flute STI tap for cutting internal threads in multiple materials prior to installing screw thread inserts. Features #6-32 UNC thread size, H2 / 2B-3B tolerance, and 3-flute spiral flute design. Suitable for general manufacturing and repair applications requiring thread reinforcement
OSG
Spiral-flute STI tap for cutting internal threads in multiple materials prior to installing screw thread inserts. Features #6-32 UNC thread size, H2 / 2B-3B tolerance, and 3-flute spiral flute design. Suitable for general manufacturing and repair applications requiring thread reinforcement
This spiral-flute STI tap is designed for cutting internal threads in multiple materials to accept screw thread inserts. It features a #6-32 UNC thread size, H3 / 2B-3B tolerance, and 3 flutes. Suitable for applications requiring strong threads in softer base materials
OSG
This spiral-flute STI tap is designed for cutting internal threads in multiple materials to accept screw thread inserts. It features a #6-32 UNC thread size, H3 / 2B-3B tolerance, and 3 flutes. Suitable for applications requiring strong threads in softer base materials
This OSG spiral-flute STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a #8-32 UNC thread size, H2 / 2B-3B tolerance, and a 3-flute design. Commonly used in aerospace, automotive, and general manufacturing for repairing or reinforcing tapped holes in aluminum, steel, and cast iron
OSG
This OSG spiral-flute STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a #8-32 UNC thread size, H2 / 2B-3B tolerance, and a 3-flute design. Commonly used in aerospace, automotive, and general manufacturing for repairing or reinforcing tapped holes in aluminum, steel, and cast iron
Spiral-flute tap for cutting internal threads to accept screw thread inserts. Designed for #6-32 UNC threads with H3 / 2B-3B tolerance and 3 flutes. The spiral flute geometry aids chip evacuation in through-hole applications. Suitable for use in multiple materials
OSG
Spiral-flute tap for cutting internal threads to accept screw thread inserts. Designed for #6-32 UNC threads with H3 / 2B-3B tolerance and 3 flutes. The spiral flute geometry aids chip evacuation in through-hole applications. Suitable for use in multiple materials

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Spiral-flute STI tap for cutting internal threads to accept helical wire thread inserts. Designed for multiple materials including aluminum, steel, and cast iron. Features 3/8"-24 UNF thread, H2 / 2B-3B tolerance, and 3 flutes. Used in applications requiring thread repair or reinforcement
This spiral-flute STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a M6x1 metric thread size, D3 / 4H-6H tolerance class, and 3 flutes. Used in general manufacturing for repairing or reinforcing tapped holes
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This spiral-flute STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a M6x1 metric thread size, D3 / 4H-6H tolerance class, and 3 flutes. Used in general manufacturing for repairing or reinforcing tapped holes
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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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
This spiral-flute STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a 7/16"-20 UNF thread, H4 / 2B-3B tolerance, and 3 flutes. Suitable for use in aerospace, automotive, and general manufacturing applications
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This spiral-flute STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a 7/16"-20 UNF thread, H4 / 2B-3B tolerance, and 3 flutes. Suitable for use in aerospace, automotive, and general manufacturing applications
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