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OSG Screw Thread Insert STI Tap: Spiral Point, 5/16"-24 UNF, H3 / 2B-3B, 3 Flute - Spiral-Point STI Taps for Steel & Stainless Steel
OSGSpiral-Point STI Taps for Steel & Stainless Steel

OSG Screw Thread Insert STI Tap: Spiral Point, 5/16"-24 UNF, H3 / 2B-3B, 3 Flute

The OSG Screw Thread Insert STI Tap (MPN 1713408) is a spiral-point STI tap for steel and stainless steel, sized 5/16"-24 UNF with a H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer.

SKU 3G-OTH-265352

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Point, 5/16"-24 UNF, H3 / 2B-3B, 3 Flute
Part Number
1713408
Category
Spiral-Point STI Taps for Steel & Stainless Steel
Available to Order
Also known as:1713408OSG
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Technical Specifications

OSG
Manufacturer Part Number
1713408
Type
H3 / 2B-3B, Plug 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 1713408) is a spiral-point STI tap for steel and stainless steel, sized 5/16"-24 UNF with a H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer.

Frequently Asked Questions

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

An OSG Screw Thread Insert STI Tap cuts internal threads in steel and stainless steel to accept helical wire thread inserts. It is used in manufacturing and repair applications where stripped or damaged threads must be restored with a stronger, wear-resistant insert.

What are the specifications of the OSG STI Tap 1713408?

The OSG STI Tap 1713408 is a spiral-point, plug-chamfer tap with 3 flutes. It cuts a 5/16"-24 UNF thread and is ground to H3 tolerance for producing 2B-3B class internal threads. It is designed specifically for steel and stainless steel workpieces.

Where to buy OSG STI Tap 1713408 worldwide?

3G Electric supplies the OSG STI Tap 1713408 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time; we source genuine OSG tooling through our global supply network.

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

Select an STI tap that matches the thread size and pitch of the insert you plan to install. For a 5/16"-24 UNF insert, use an STI tap with the same designation. The tap's H3 tolerance ensures the tapped hole meets the 2B-3B class required for proper insert seating.

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-point sti taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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