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OSG Screw Thread Insert STI Tap: Spiral Point, 1"-12 UNF, H4 / 2B, 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, 1"-12 UNF, H4 / 2B, 3 Flute

The OSG Screw Thread Insert STI Tap is a spiral-point tap for steel and stainless steel, specified as 1"-12 UNF with H4 / 2B tolerance, a plug chamfer, and 3 flutes (MPN 30104601). 3G Electric interprets this demand…

SKU 3G-OTH-265378

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Point, 1"-12 UNF, H4 / 2B, 3 Flute
Category
Spiral-Point STI Taps for Steel & Stainless Steel
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
30104601
Type
H4 / 2B, Plug Chamfer
Flute
3
UNF
1"-12

Technical Documents

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

Product Description

The OSG Screw Thread Insert STI Tap is a spiral-point tap for steel and stainless steel, specified as 1"-12 UNF with H4 / 2B tolerance, a plug chamfer, and 3 flutes (MPN 30104601). 3G Electric interprets this demand and sources the genuine OSG tool, backed by specialist expertise across 14 industrial departments.

Frequently Asked Questions

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

This OSG spiral-point STI tap is designed for cutting internal threads in steel and stainless steel to accept screw thread inserts. It is commonly used in aerospace, automotive, and industrial maintenance applications where strong, wear-resistant threads are required.

What are the specifications of the OSG Screw Thread Insert STI Tap?

The OSG STI tap has a 1"-12 UNF thread size, H4/2B tolerance, 3 flutes, and a plug chamfer. It is a spiral-point design optimized for steel and stainless steel. The manufacturer part number is 30104601.

Where to buy the OSG Screw Thread Insert STI Tap worldwide?

You can source the OSG Screw Thread Insert STI Tap through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring reliable supply for your operations.

How to select the correct OSG STI tap for thread inserts?

Select an STI tap based on the insert's thread size and pitch, such as 1"-12 UNF. Ensure the tap tolerance (e.g., H4/2B) matches the required thread class. For steel and stainless steel, a spiral-point design with plug chamfer is recommended for efficient chip evacuation.

Used in

Common applications for OSG
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

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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