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OSG Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H6, 4 Flute - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H6, 4 Flute

The OSG Screw Thread Insert STI Tap (MPN 12605400) is a general-purpose STI tap with a straight flute design, sized 1"-12 UNF. It features an H6 tolerance, 4 flutes, and a bottoming chamfer, making it suitable for…

SKU 3G-OTH-262018

Brand
OSG
Item
Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H6, 4 Flute
Category
General Purpose STI Taps
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
12605400
Type
H6, Bottoming Chamfer
Flute
4
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 (MPN 12605400) is a general-purpose STI tap with a straight flute design, sized 1"-12 UNF. It features an H6 tolerance, 4 flutes, and a bottoming chamfer, making it suitable for threading applications requiring screw thread inserts.

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 a workpiece before installing a helical wire thread insert. It is commonly applied in aerospace, automotive, and general manufacturing to repair or reinforce threads in softer materials like aluminum or cast iron.

What are the specifications of the OSG STI Tap MPN 12605400?

The OSG STI Tap MPN 12605400 is a general purpose tap with a 1"-12 UNF thread size, H6 tolerance, 4 flutes, and a bottoming chamfer. It has a straight flute design and is made for screw thread insert (STI) applications. The manufacturer part number is 12605400.

Where to buy OSG STI Taps worldwide?

You can source OSG STI Taps like MPN 12605400 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this item.

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

To select the correct OSG STI Tap, match the tap's thread size and pitch to the insert you plan to use. For example, a 1"-12 UNF tap works with a 1"-12 UNF insert. Also choose the chamfer type: bottoming for blind holes, plug or taper for through holes. Always verify the tap's tolerance class (e.g., H6) matches your application.

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 general purpose 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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OSG Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H6, 4 Flute, Plug Chamfer (MPN 12605300)
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