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OSG Thread-Forming STI Tap, 5/16"-24 UNF, H5 / 2B-3B, V Coated Cobalt - Thread-Forming STI Taps
OSGThread-Forming STI Taps

OSG Thread-Forming STI Tap, 5/16"-24 UNF, H5 / 2B-3B, V Coated Cobalt

The OSG Screw Thread Insert STI Tap is a thread-forming tap for 5/16"-24 UNF threads, with an H5 tolerance for 2B-3B class fit and V Coated Cobalt construction (MPN 1626002608). 3G Electric interprets this demand and…

SKU 3G-OTH-403934

Brand
OSG
Item
Thread-Forming STI Tap, 5/16"-24 UNF, H5 / 2B-3B, V Coated Cobalt
Part Number
1626002608
Category
Thread-Forming STI Taps
Available to Order
Also known as:1626002608OSG
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Technical Specifications

OSG
Manufacturer Part Number
1626002608
Type
H5 / 2B-3B, V Coated Cobalt
UNF
5/16"-24

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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 5/16"-24 UNF threads, with an H5 tolerance for 2B-3B class fit and V Coated Cobalt construction (MPN 1626002608). 3G Electric interprets this demand and sources the genuine OEM tool, backed by specialist expertise across 14 industrial departments — and we supply far more than is listed.

Frequently Asked Questions

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

An OSG Screw Thread Insert STI Tap is used to form internal threads in pre-drilled holes for installing screw thread inserts. It is commonly applied in aerospace, automotive, and general manufacturing where strong, wear-resistant threads are required in softer materials like aluminum or cast iron.

What are the specifications of the OSG STI Tap 5/16"-24 UNF?

This OSG STI Tap has a thread size of 5/16"-24 UNF, with a thread-forming type rated H5 / 2B-3B. It is made from V coated cobalt for enhanced durability and heat resistance. The manufacturer part number is 1626002608, and it is designed for use with STI (screw thread insert) applications.

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 times on this and other OSG threading tools.

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

To select the correct OSG STI Tap, match the thread size and pitch (e.g., 5/16"-24 UNF) to the insert you plan to install. Ensure the tap type (thread-forming vs. cutting) suits the base material. For aluminum or steel, use a coated cobalt tap like this OSG model for longer tool life.

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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