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OSG Screw Thread Insert STI Tap: Spiral Fute, #8-36 UNF, H2 / 2B-3B, 3 Flute - Spiral-Flute STI Taps for Steel & Stainless Steel
OSGSpiral-Flute STI Taps for Steel & Stainless Steel

OSG Screw Thread Insert STI Tap: Spiral Fute, #8-36 UNF, H2 / 2B-3B, 3 Flute

The OSG Screw Thread Insert STI Tap (Spiral Flute) is a #8-36 UNF, H2 / 2B-3B, bottoming chamfer tap with 3 flutes (MPN 30200501). Designed for steel and stainless steel, this spiral-flute STI tap is engineered for…

SKU 3G-OTH-244182

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Fute, #8-36 UNF, H2 / 2B-3B, 3 Flute
Category
Spiral-Flute STI Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
30200501
Type
#8-36 UNF, H2 / 2B-3B, Bottoming Chamfer
Flute
3

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

Product Description

The OSG Screw Thread Insert STI Tap (Spiral Flute) is a #8-36 UNF, H2 / 2B-3B, bottoming chamfer tap with 3 flutes (MPN 30200501). Designed for steel and stainless steel, this spiral-flute STI tap is engineered for threading applications requiring screw thread inserts.

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 for installing helical wire thread inserts. It is used in aerospace, automotive, and general manufacturing to repair or reinforce tapped holes, ensuring strong, wear-resistant threads.

What are the specifications of the OSG STI Tap #8-36 UNF?

This OSG STI Tap is #8-36 UNF with a H2 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is designed for spiral-flute tapping in steel and stainless steel. The manufacturer part number is 30200501.

Where to buy OSG STI Taps worldwide?

3G Electric supplies OSG STI Taps worldwide, handling full logistics and customs clearance. We source genuine OSG cutting tools across 14 industrial departments, including taps for thread inserts. Contact us for pricing and delivery to your location.

How to select the correct STI tap for thread inserts?

Select an STI tap that matches the thread insert size and class, such as #8-36 UNF with H2 / 2B-3B tolerance. Use a bottoming chamfer for blind holes and spiral flute for chip evacuation in steel. Always follow the tap manufacturer's recommended speeds and lubrication.

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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OSG Screw Thread Insert STI Tap: Spiral Fute, #8-36 UNF, H2 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 30200508)
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