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OSG Screw Thread Insert STI Tap: Spiral Fute, 3/4"-16 UNF, H4 / 2B-3B, 4 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, 3/4"-16 UNF, H4 / 2B-3B, 4 Flute

SKU 3G-OTH-244180

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Fute, 3/4"-16 UNF, H4 / 2B-3B, 4 Flute
Category
Spiral-Flute STI Taps for Steel & Stainless Steel
Available to Order
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Technical Specifications

OSG
Manufacturer Part Number
0148208
Type
H4 / 2B-3B, Bottoming Chamfer
Flute
4
UNF
3/4"-16
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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 used in industrial maintenance and production to repair or reinforce stripped threads, ensuring strong, reusable connections in demanding applications.

What are the specifications of the OSG STI Tap 3/4"-16 UNF?

This OSG STI Tap has a 3/4"-16 UNF thread, H4 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is designed for spiral-flute tapping in steel and stainless steel. The manufacturer part number is 0148208.

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 repair. Contact us for availability and delivery to your location.

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

Select an OSG STI Tap that matches the original thread size and pitch, such as 3/4"-16 UNF. Use a bottoming chamfer for blind holes and a spiral-flute design for steel or stainless steel. Ensure the tap tolerance (H4 / 2B-3B) aligns with the insert and application requirements.

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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