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OSG 8013700 Spiral-Flute STI Tap - Spiral-Flute STI Taps
OSGSpiral-Flute STI Taps

OSG 8013700 Spiral-Flute STI Tap

The OSG Screw Thread Insert STI Tap (MPN 8013700) is a spiral-flute tap for 5/16"-24 UNF threads, featuring an H3 / 2B-3B tolerance class, 3 flutes, and a bottoming chamfer design. 3G Electric interprets demand and…

SKU 3G-OTH-273371

Brand
OSG
Item
8013700 Spiral-Flute STI Tap
Part Number
8013700
Category
Spiral-Flute STI Taps
Available to Order
Also known as:8013700OSG
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Technical Specifications

OSG
Manufacturer Part Number
8013700
Type
H3 / 2B-3B, Bottoming Chamfer
Flute
3
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 (MPN 8013700) is a spiral-flute tap for 5/16"-24 UNF threads, featuring an H3 / 2B-3B tolerance class, 3 flutes, and a bottoming chamfer design. 3G Electric interprets demand and delivers this genuine industrial tool across 14 departments, with specialist depth in cutting tools and controls.

Frequently Asked Questions

What is an OSG spiral-flute STI tap used for?

An OSG spiral-flute STI tap is used to cut internal threads for screw thread inserts in metal parts. It is ideal for through-hole applications in automotive, aerospace, and general manufacturing where chip evacuation is critical. The bottoming chamfer allows threading close to the bottom of a blind hole.

What are the specifications of the OSG 8013700 STI tap?

The OSG 8013700 is a spiral-flute STI tap with UNF thread size 5/16"-24, H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is designed for threading holes that will accept screw thread inserts. The H3 / 2B-3B designation ensures precise fit for insert installation.

Where to buy OSG taps in worldwide?

You can source OSG 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 8013700 STI tap and other cutting tools.

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

Select an STI tap that matches the insert's thread size and pitch, such as 5/16"-24 UNF. Use a bottoming chamfer for blind holes and a spiral-flute design for through holes to improve chip evacuation. The H3 / 2B-3B tolerance ensures proper fit. OSG taps are a reliable choice for precision threading.

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 spiral-flute 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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