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OSG Screw Thread Insert STI Tap: Spiral Fute, 1/4"-20 UNC, 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, 1/4"-20 UNC, H2 / 2B-3B, 3 Flute

The OSG Screw Thread Insert STI Tap is a spiral-flute tap for steel and stainless steel, specified as 1/4"-20 UNC with an H2 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer (MPN 0146001). 3G Electric interprets…

SKU 3G-OTH-244307

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Fute, 1/4"-20 UNC, H2 / 2B-3B, 3 Flute
Category
Spiral-Flute STI Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
0146001
Type
H2 / 2B-3B, Bottoming Chamfer
Flute
3
UNC
1/4"-20
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Screw Thread Insert STI Tap is a spiral-flute tap for steel and stainless steel, specified as 1/4"-20 UNC with an H2 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer (MPN 0146001). 3G Electric interprets this demand and sources the genuine OSG tool, supporting your threading operations across 14 industrial departments with specialist depth in cutting tools.

Frequently Asked Questions

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

An OSG Screw Thread Insert STI Tap is used to cut internal threads in steel and stainless steel for installing helical wire thread inserts. It is commonly applied in aerospace, automotive, and industrial maintenance to repair or reinforce stripped threads, ensuring strong, reusable connections.

What are the specifications of the OSG STI Tap 0146001?

The OSG STI Tap 0146001 is a spiral-flute tap for steel and stainless steel. It has a UNC thread size of 1/4"-20, a tolerance class of H2 / 2B-3B, 3 flutes, and a bottoming chamfer. The manufacturer part number is 0146001.

Where to buy OSG STI Tap 0146001 worldwide?

You can source the OSG STI Tap 0146001 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive the correct tap for your thread repair needs.

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

To select the correct OSG STI tap, match the tap's thread size and pitch to the insert you plan to install. For steel and stainless steel, choose a spiral-flute tap with a bottoming chamfer for blind holes. Verify the tolerance class, such as H2 / 2B-3B, to ensure proper fit with the insert.

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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