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OSG Screw Thread Insert STI Tap: Spiral Fute, 5/8"-11 UNC, H3 / 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, H3 / 2B-3B

SKU 3G-OTH-244296

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Fute, 5/8"-11 UNC, H3 / 2B-3B
Category
Spiral-Flute STI Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
30203601
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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 cuts internal threads in steel and stainless steel to accept helical wire thread inserts. It is commonly used in aerospace, automotive, and heavy equipment repair where stripped threads must be restored without replacing the parent component.

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

This OSG spiral-flute STI tap has a thread size of 5/8"-11 UNC, 4 flutes, and a thread tolerance of H3 / 2B-3B. The spiral flute design evacuates chips upward, making it suitable for blind-hole threading in steel and stainless steel. Manufacturer part number is 30203601.

Where to buy OSG STI Taps worldwide?

3G Electric supplies OSG STI Taps worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this 5/8"-11 UNC spiral-flute tap, part number 30203601.

How to select the correct STI tap for thread repair?

Select an STI tap that matches the original thread size and pitch, such as 5/8"-11 UNC. Use a spiral-flute design for blind holes and a spiral-point design for through holes. The tap tolerance (e.g., H3 / 2B-3B) must align with the insert manufacturer's recommendation for proper thread engagement.

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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