OSG Screw Thread Insert STI Tap: Spiral Point, 1/4"-20 UNC, H3 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap: Spiral Point (SKU 31400801, MPN 31400801) is a 1/4"-20 UNC spiral-point tap with H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. Designed for threading multiple materials, it…
SKU 3G-OTH-284656
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: Spiral Point (SKU 31400801, MPN 31400801) is a 1/4"-20 UNC spiral-point tap with H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. Designed for threading multiple materials, it is supplied by 3G Electric, an industrial solutions provider that interprets customer demand and delivers genuine equipment across 14 departments, with specialist depth in combustion, pumps, and controls.
Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
The OSG Screw Thread Insert STI Tap is used to cut internal threads in multiple materials for installing screw thread inserts. It is commonly applied in automotive, aerospace, and general manufacturing where strong, wear-resistant threads are required in softer base materials.
What are the specifications of the OSG 31400801 STI Tap?
The OSG 31400801 is a spiral-point STI tap with a 1/4"-20 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for threading multiple materials and is manufactured under part number 31400801.
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 31400801.
How to select the correct OSG STI Tap for a thread insert?
Select an OSG STI tap based on the thread insert size, material, and tolerance class. For a 1/4"-20 UNC insert, use a tap with H3 / 2B-3B tolerance and a plug chamfer. Ensure the tap matches the insert manufacturer's recommendations for optimal thread quality.
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.
