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OSG Thread-Forming STI Tap, 1/2"-13 UNC, H5 / 2B-3B, Modified Bottoming Chamfer - Thread-Forming STI Taps
OSGThread-Forming STI Taps

OSG Thread-Forming STI Tap, 1/2"-13 UNC, H5 / 2B-3B, Modified Bottoming Chamfer

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
Thread-Forming STI Tap, 1/2"-13 UNC, H5 / 2B-3B, Modified Bottoming Chamfer
Part Number
1626003508
Category
Thread-Forming STI Taps
Available to Order
Also known as:1626003508OSG
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Technical Specifications

OSG
Manufacturer Part Number
1626003508
Type
H5 / 2B-3B, Modified Bottoming Chamfer
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 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
Aerospace — OSG STI taps for installing helical wire thread inserts in aluminum components
Automotive — OSG spiral-point taps for through-hole threading in engine blocks and transmission cases
General machining — OSG spiral-flute taps for blind-hole threading in steel and stainless steel parts
Heavy equipment repair — OSG thread-forming taps for creating threads in ductile iron and steel castings
Precision manufacturing — OSG solid carbide chucking reamers for finishing holes in hydraulic manifolds
Die and mold — OSG coolant-through solid carbide drills for deep-hole drilling in tool steels
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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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Thread-forming tap for creating internal threads in pre-drilled holes to accept helical wire thread inserts. Features a #4-48 UNF thread size, H2 / 2B-3B tolerance class, and modified bottoming chamfer. Used in general industrial machining for thread repair or reinforcement in metals
OSG
Thread-forming tap for creating internal threads in pre-drilled holes to accept helical wire thread inserts. Features a #4-48 UNF thread size, H2 / 2B-3B tolerance class, and modified bottoming chamfer. Used in general industrial machining for thread repair or reinforcement in metals

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