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OSG Screw Thread Insert STI Tap: Spiral Fute, 5/8"-11 UNC, H4 / 2B-3B - Spiral-Flute STI Taps for Steel & Stainless Steel
OSGSpiral-Flute STI Taps for Steel & Stainless Steel

OSG Screw Thread Insert STI Tap: Spiral Fute, 5/8"-11 UNC, H4 / 2B-3B

SKU 3G-OTH-244298

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Fute, 5/8"-11 UNC, H4 / 2B-3B
Category
Spiral-Flute STI Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
30203808
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is an OSG Screw Thread Insert STI Tap used for?

An OSG Screw Thread Insert STI Tap is used to pre-tap holes for helical wire thread inserts in steel and stainless steel. The spiral flute design efficiently evacuates chips, making it ideal for threading applications in industrial maintenance, automotive, and general manufacturing where strong, wear-resistant threads are required.

What are the specifications of the OSG STI Tap 5/8"-11 UNC?

This OSG STI Tap has a 5/8"-11 UNC thread size, H4 / 2B-3B tolerance, and 4 flutes with a spiral flute design. It is designed for tapping holes that will accept screw thread inserts in steel and stainless steel. The manufacturer part number is 30203808.

Where to buy OSG STI Taps worldwide?

3G Electric supplies OSG STI Taps worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to source this 5/8"-11 UNC spiral flute tap or any OSG cutting tool for your production needs.

How to select the correct OSG STI Tap size?

Select an OSG STI Tap based on the thread insert's nominal size and pitch, such as 5/8"-11 UNC. Ensure the tap tolerance (e.g., H4 / 2B-3B) matches the required thread class for the insert. For steel and stainless steel, a spiral flute design aids chip evacuation. Confirm material compatibility and hole depth before ordering.

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 steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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