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OSG Screw Thread Insert STI Tap: Straight Fute, #4-40 UNC, H1 / 2B-3B, 3 Flute - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG Screw Thread Insert STI Tap: Straight Fute, #4-40 UNC, H1 / 2B-3B, 3 Flute

The OSG Screw Thread Insert STI Tap is a general-purpose STI tap with a straight flute design, specified as #4-40 UNC with H1 / 2B-3B tolerance and a plug chamfer. It features 3 flutes and is identified by…

SKU 3G-OTH-262059

Brand
OSG
Item
Screw Thread Insert STI Tap: Straight Fute, #4-40 UNC, H1 / 2B-3B, 3 Flute
Category
General Purpose STI Taps
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Technical Specifications

OSG
Manufacturer Part Number
6004500
Type
#4-40 UNC, H1 / 2B-3B, Plug Chamfer
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Screw Thread Insert STI Tap is a general-purpose STI tap with a straight flute design, specified as #4-40 UNC with H1 / 2B-3B tolerance and a plug chamfer. It features 3 flutes and is identified by manufacturer part number 6004500.

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 pre-drilled hole 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 6004500?

The OSG STI Tap MPN 6004500 is a #4-40 UNC straight flute tap with a plug chamfer and 3 flutes. It has a thread tolerance of H1 / 2B-3B, making it suitable for general-purpose thread insert installation. This tap is designed for use with STI (screw thread insert) applications.

Where to buy OSG STI Taps worldwide?

You can source OSG STI Taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG Screw Thread Insert STI Tap MPN 6004500.

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

To select the correct OSG STI Tap, match the tap size and thread pitch to the insert's specifications. For example, the #4-40 UNC tap is used with corresponding #4-40 UNC inserts. Ensure the tap tolerance (e.g., H1 / 2B-3B) aligns with the required thread class for 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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