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3G Electric
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
Part Number
6004500
Category
General Purpose STI Taps
Available to Order
Also known as:6004500OSG
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Local availability & support — Singapore

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