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OSG Screw Thread Insert STI Tap: Straight Fute, 3/4"-10 UNC, H5 / 2B-3B, 4 Flute - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG Screw Thread Insert STI Tap: Straight Fute, 3/4"-10 UNC, H5 / 2B-3B, 4 Flute

The OSG Screw Thread Insert STI Tap (Straight Flute, MPN 12603300) is a general-purpose STI tap for 3/4"-10 UNC threads. It features an H5 / 2B-3B tolerance, 4 flutes, and a plug chamfer, designed for tapping holes…

SKU 3G-OTH-262140

Brand
OSG
Item
Screw Thread Insert STI Tap: Straight Fute, 3/4"-10 UNC, H5 / 2B-3B, 4 Flute
Category
General Purpose STI Taps
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Technical Specifications

OSG
Manufacturer Part Number
12603300
Type
H5 / 2B-3B, Plug Chamfer
Flute
4
UNC
3/4"-10
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Screw Thread Insert STI Tap (Straight Flute, MPN 12603300) is a general-purpose STI tap for 3/4"-10 UNC threads. It features an H5 / 2B-3B tolerance, 4 flutes, and a plug chamfer, designed for tapping holes to accept screw thread inserts.

Frequently Asked Questions

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

The OSG Screw Thread Insert STI Tap is used to cut internal threads in metal or plastic that will accept a helical coil thread insert. It is commonly applied in automotive, aerospace, and general manufacturing where thread repair or reinforcement is needed.

What are the specifications of the OSG STI Tap 12603300?

This OSG STI Tap has a UNC thread size of 3/4"-10, with an H5 / 2B-3B tolerance class. It features 4 straight flutes and a plug chamfer. The manufacturer part number is 12603300. It is designed for general-purpose thread insert tapping.

Where to buy the OSG STI Tap 12603300 worldwide?

You can source the OSG STI Tap 12603300 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to select the correct OSG STI tap for a thread insert?

Select an OSG STI tap that matches the thread insert's nominal size and pitch, such as 3/4"-10 UNC. Ensure the tap tolerance (e.g., H5 / 2B-3B) aligns with the required thread class. Use a plug chamfer for through holes or bottoming for blind holes.

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 general purpose sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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