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OSG Screw Thread Insert STI Tap: Spiral Point, 7/16"-20 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, 7/16"-20 UNF, H3 / 2B-3B, 3 Flute

The OSG Screw Thread Insert STI Tap: Spiral Point (MPN 30101901) is a spiral-point STI tap for steel and stainless steel, with a 7/16"-20 UNF thread, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. 3G Electric…

SKU 3G-OTH-265480

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Point, 7/16"-20 UNF, H3 / 2B-3B, 3 Flute
Part Number
30101901
Category
Spiral-Point STI Taps for Steel & Stainless Steel
Available to Order
Also known as:30101901OSG
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
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Technical Specifications

OSG
Manufacturer Part Number
30101901
Type
H3 / 2B-3B, Plug Chamfer
Flute
3
UNF
7/16"-20

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

Product Description

The OSG Screw Thread Insert STI Tap: Spiral Point (MPN 30101901) is a spiral-point STI tap for steel and stainless steel, with a 7/16"-20 UNF thread, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. 3G Electric interprets your demand for this precision threading tool, sourcing it from OSG and supporting your application with specialist expertise across 14 industrial departments.

Frequently Asked Questions

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

An OSG Screw Thread Insert STI Tap is used to cut internal threads in steel and stainless steel for installing helical wire thread inserts. It is ideal for repairing or reinforcing threads in industrial applications across machining, power transmission, and material handling.

What are the specifications of the OSG STI Tap 30101901?

The OSG STI Tap 30101901 is a spiral-point tap with a 7/16"-20 UNF thread, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for steel and stainless steel, ensuring precise thread forming for insert installation.

Where to buy OSG STI Tap 30101901 worldwide?

3G Electric supplies the OSG STI Tap 30101901 worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver genuine OSG taps to support your machining and maintenance needs across 14 industrial departments.

How to select the correct STI tap for thread inserts?

Select an STI tap matching the insert's thread size and pitch, like the OSG 7/16"-20 UNF. Use a plug chamfer for through holes and a spiral-point design for chip evacuation in steel. Verify tolerance (H3 / 2B-3B) aligns with your thread class requirements.

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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