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OSG #3-48 UNC Spiral-Point STI Tap, H2 / 2B-3B, Plug Chamfer, 3 Flute - Spiral-Point STI Taps for Multiple Materials
OSGSpiral-Point STI Taps for Multiple Materials

OSG #3-48 UNC Spiral-Point STI Tap, H2 / 2B-3B, Plug Chamfer, 3 Flute

The OSG Screw Thread Insert STI Tap: Spiral Point (SKU 31400101, MPN 31400101) is a #3-48 UNC, H2 / 2B-3B, 3-flute, plug-chamfer tap designed for threading holes to accept screw thread inserts. It is a spiral-point…

SKU 3G-OTH-284653

Brand
OSG
Item
#3-48 UNC Spiral-Point STI Tap, H2 / 2B-3B, Plug Chamfer, 3 Flute
Part Number
31400101
Category
Spiral-Point STI Taps for Multiple Materials
Available to Order
Also known as:31400101OSG
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Technical Specifications

OSG
Manufacturer Part Number
31400101
Type
#3-48 UNC, H2 / 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: Spiral Point (SKU 31400101, MPN 31400101) is a #3-48 UNC, H2 / 2B-3B, 3-flute, plug-chamfer tap designed for threading holes to accept screw thread inserts. It is a spiral-point STI tap for multiple materials, with a H2 / 2B-3B tolerance class.

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 multiple materials before installing a helical coil thread insert. It is essential for repairing or reinforcing threads in metal, plastic, and composite components across industrial maintenance and production applications.

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

This OSG STI Tap is a #3-48 UNC spiral-point design with H2 / 2B-3B tolerance, 3 flutes, and a plug chamfer. The manufacturer part number is 31400101. It is engineered for thread sizes that accept screw thread inserts, ensuring accurate internal threads in multiple materials.

Where to buy OSG STI Tap #3-48 UNC worldwide?

3G Electric supplies the OSG STI Tap #3-48 UNC (MPN 31400101) worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this precision threading tool.

How to select the correct STI tap for thread inserts?

Select an STI tap that matches the thread size and pitch of the insert, such as #3-48 UNC. Use a tap with H2 / 2B-3B tolerance for standard fit. OSG taps like this spiral-point design are suitable for multiple materials. Always verify the chamfer type—plug chamfer works for most through-hole applications.

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 spiral-point sti taps for multiple materials. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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