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OSG Screw Thread Insert STI Tap: Straight Fute, 1/2"-13 UNC, H4 / 2B-3B, 4 Flute - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG Screw Thread Insert STI Tap: Straight Fute, 1/2"-13 UNC, H4 / 2B-3B, 4 Flute

The OSG Screw Thread Insert STI Tap (Straight Flute, MPN 12601100) is a general-purpose STI tap with a 1/2"-13 UNC thread size, H4 / 2B-3B tolerance, 4 flutes, and a plug chamfer. 3G Electric interprets your demand…

SKU 3G-OTH-261991

Brand
OSG
Item
Screw Thread Insert STI Tap: Straight Fute, 1/2"-13 UNC, H4 / 2B-3B, 4 Flute
Category
General Purpose STI Taps
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Technical Specifications

OSG
Manufacturer Part Number
12601100
Type
H4 / 2B-3B, Plug Chamfer
Flute
4
UNC
1/2"-13
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Screw Thread Insert STI Tap (Straight Flute, MPN 12601100) is a general-purpose STI tap with a 1/2"-13 UNC thread size, H4 / 2B-3B tolerance, 4 flutes, and a plug chamfer. 3G Electric interprets your demand for this OEM-specified tool and delivers it across 14 industrial departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.

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 pre-drilled holes for installing helical wire thread inserts. It is commonly applied in general-purpose machining across automotive, aerospace, and industrial maintenance to restore or strengthen threads in metal components.

What are the specifications of the OSG 12601100 STI Tap?

The OSG 12601100 STI Tap has a straight flute design, 1/2"-13 UNC thread size, H4 / 2B-3B tolerance, 4 flutes, and a plug chamfer. It is a general-purpose STI tap manufactured by OSG, suitable for creating threads that accept standard screw thread inserts.

Where to buy OSG STI Taps worldwide?

You can source OSG STI Taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG 12601100 STI Tap.

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

To select the correct OSG STI Tap, match the tap's thread size and pitch to the insert you plan to use. For the 12601100 model, ensure your application requires a 1/2"-13 UNC thread with H4 / 2B-3B tolerance. Use a plug chamfer for through holes and verify material compatibility with OSG's recommendations.

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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