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OSG Screw Thread Insert STI Tap: Straight Fute, 3/8"-24 UNF, H3 / 2B-3B, 4 Flute - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG Screw Thread Insert STI Tap: Straight Fute, 3/8"-24 UNF, H3 / 2B-3B, 4 Flute

The OSG Screw Thread Insert STI Tap (SKU 33ZL28, MPN 6018700) is a general-purpose STI tap with a straight flute design, sized 3/8"-24 UNF. It features a bottoming chamfer, 4 flutes, and an H3 / 2B-3B tolerance…

SKU 3G-OTH-262061

Brand
OSG
Item
Screw Thread Insert STI Tap: Straight Fute, 3/8"-24 UNF, H3 / 2B-3B, 4 Flute
Category
General Purpose STI Taps
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Technical Specifications

OSG
Manufacturer Part Number
6018700
Type
H3 / 2B-3B, Bottoming Chamfer
Flute
4
UNF
3/8"-24
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Screw Thread Insert STI Tap (SKU 33ZL28, MPN 6018700) is a general-purpose STI tap with a straight flute design, sized 3/8"-24 UNF. It features a bottoming chamfer, 4 flutes, and an H3 / 2B-3B tolerance class, making it suitable for threading insert-ready holes in industrial applications.

Frequently Asked Questions

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

The OSG Screw Thread Insert STI Tap is used to cut internal threads in metal or plastic for installing screw thread inserts. It is ideal for repair and production applications where a stronger or replaceable thread is needed, common in automotive, aerospace, and industrial maintenance.

What are the specifications of the OSG STI Tap 6018700?

The OSG STI Tap 6018700 has a 3/8"-24 UNF thread size, H3 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is a straight flute, general purpose tap designed for screw thread insert installation. The H3 tolerance ensures precise thread fit for 2B-3B class threads.

Where to buy OSG STI Tap 6018700 worldwide?

You can source the OSG STI Tap 6018700 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; we provide reliable sourcing for this OSG tap.

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

To select the correct OSG STI tap, match the thread size and pitch (e.g., 3/8"-24 UNF) to the insert you plan to install. Choose the chamfer type: bottoming for blind holes, taper for through holes. Verify the tolerance class (H3 for 2B-3B fit) and ensure the tap is designed for STI inserts, not standard threads.

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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