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OSG Screw Thread Insert STI Tap: Thread Forming, 1/2"-13 UNC, H5 / 2B-3B - Thread-Forming STI Taps
OSGThread-Forming STI Taps

OSG Screw Thread Insert STI Tap: Thread Forming, 1/2"-13 UNC, H5 / 2B-3B

The OSG Screw Thread Insert STI Tap is a thread-forming tap for 1/2"-13 UNC applications, with an H5 / 2B-3B tolerance and Modified Bottoming Chamfer (MPN 1626003508). 3G Electric interprets this demand and sources…

SKU 3G-OTH-403921

Brand
OSG
Item
Screw Thread Insert STI Tap: Thread Forming, 1/2"-13 UNC, H5 / 2B-3B
Category
Thread-Forming STI Taps
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
1626003508
Type
H5 / 2B-3B, Modified Bottoming Chamfer
UNC
1/2"-13

Technical Documents

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

Product Description

The OSG Screw Thread Insert STI Tap is a thread-forming tap for 1/2"-13 UNC applications, with an H5 / 2B-3B tolerance and Modified Bottoming Chamfer (MPN 1626003508). 3G Electric interprets this demand and sources the genuine OSG tool, backed by specialist expertise across 14 industrial departments — including cutting tools — to ensure you get the right solution.

Frequently Asked Questions

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

An OSG Screw Thread Insert STI Tap is used to create internal threads in metal or plastic that accept helical wire thread inserts. It is commonly applied in automotive, aerospace, and industrial maintenance to repair or reinforce stripped threads without replacing the parent component.

What are the specifications of the OSG STI Tap 1/2"-13 UNC?

This OSG thread-forming STI tap has a UNC thread size of 1/2"-13, a tolerance class of H5 for 2B-3B fit, and a modified bottoming chamfer. The manufacturer part number is 1626003508. It is designed to form threads for screw thread inserts in through or blind holes.

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 this OSG 1/2"-13 UNC thread-forming tap.

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

To select the correct OSG STI Tap, match the tap thread size and pitch to the insert's internal thread specification. For this 1/2"-13 UNC tap, ensure the insert requires a 1/2"-13 UNC thread. Use a modified bottoming chamfer for blind holes and a taper chamfer for through 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 thread-forming 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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