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OSG Screw Thread Insert STI Tap: Straight Fute, #3-48 UNC, H2 / 2B-3B, 3 Flute - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG Screw Thread Insert STI Tap: Straight Fute, #3-48 UNC, H2 / 2B-3B, 3 Flute

The OSG Screw Thread Insert STI Tap (Straight Flute) is a general-purpose STI tap for #3-48 UNC threads, with an H2 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer (MPN 6003300).

SKU 3G-OTH-261982

Brand
OSG
Item
Screw Thread Insert STI Tap: Straight Fute, #3-48 UNC, H2 / 2B-3B, 3 Flute
Category
General Purpose STI Taps
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Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
6003300
Type
#3-48 UNC, H2 / 2B-3B, Bottoming Chamfer
Flute
3

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

Product Description

The OSG Screw Thread Insert STI Tap (Straight Flute) is a general-purpose STI tap for #3-48 UNC threads, with an H2 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer (MPN 6003300).

Frequently Asked Questions

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

An OSG Screw Thread Insert STI Tap cuts internal threads in a pre-drilled hole to accept a helical coil thread insert. It is used in industrial maintenance and production to repair or reinforce stripped threads in metal components, ensuring a durable, reusable threaded connection.

What are the specifications of the OSG STI Tap #3-48 UNC?

This OSG STI Tap is a #3-48 UNC, H2 / 2B-3B tolerance, straight flute, bottoming chamfer tap with 3 flutes. It is designed for general-purpose thread insert installation. The manufacturer part number is 6003300. It produces threads that accept a standard #3-48 screw thread insert.

Where to buy OSG STI Taps worldwide?

3G Electric supplies OSG STI Taps, including the #3-48 UNC model, to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote on this or any other industrial cutting tool you need sourced and delivered globally.

How to select the correct STI tap size for a thread insert?

Select an STI tap that matches the thread size and pitch of the insert you are installing. For a #3-48 UNC insert, use a #3-48 UNC STI tap. The tap's tolerance (e.g., H2 / 2B-3B) must align with the insert manufacturer's recommendation to ensure proper fit and thread strength.

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, #3-48 UNC, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 6003200)
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OSG Screw Thread Insert STI Tap: Straight Fute, #2-56 UNC, H2 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 6002700)
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