OSG Screw Thread Insert STI Tap: Spiral Point, 1"-8 UNC, H4 / 2B, 4 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap for multiple materials, specified as 1"-8 UNC, H4 / 2B, with a 4-flute plug chamfer (MPN 31404001). 3G Electric interprets this demand and sources the genuine…
SKU 3G-OTH-284745
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The OSG Screw Thread Insert STI Tap is a spiral-point tap for multiple materials, specified as 1"-8 UNC, H4 / 2B, with a 4-flute plug chamfer (MPN 31404001). 3G Electric interprets this demand and sources the genuine OSG tool, backed by our specialist expertise across 14 industrial departments — including machining — to ensure you get the right threading solution.
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 wire thread insert. It is essential for repairing or reinforcing threads in metal, aluminum, and cast iron across industrial applications like machining and maintenance.
What are the specifications of the OSG STI Tap 31404001?
The OSG STI Tap 31404001 has a UNC thread size of 1"-8, with a H4 / 2B tolerance class and plug chamfer. It features 4 flutes and a spiral-point design for efficient chip evacuation. This tap is designed for multiple materials and is manufactured by OSG.
Where to buy OSG STI Tap 31404001 worldwide?
You can source the OSG STI Tap 31404001 worldwide through 3G Electric, which handles full logistics, customs clearance, and delivery to your location. As a global industrial supplier, we provide genuine OSG taps and support procurement across 14 departments, including machining and tooling.
How to select the correct STI tap for thread inserts?
To select the correct STI tap, match the tap's thread size and pitch to the insert's specifications, such as 1"-8 UNC for this OSG tap. Ensure the tap has the proper tolerance (H4 / 2B) and chamfer type (plug) for the material. Consult the insert manufacturer's guidelines for best results.
Used in
Common applications for OSGOSG 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.
