OSG Screw Thread Insert STI Tap: Spiral Fute, 5/16"-18 UNC, H3 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap (MPN 0146401) is a spiral-flute tap for steel and stainless steel, sized 5/16"-18 UNC with a H3 / 2B-3B tolerance and bottoming chamfer. It features 3 flutes, designed for…
SKU 3G-OTH-244292
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 (MPN 0146401) is a spiral-flute tap for steel and stainless steel, sized 5/16"-18 UNC with a H3 / 2B-3B tolerance and bottoming chamfer. It features 3 flutes, designed for threading holes that accept screw thread inserts. 3G Electric interprets demand and supplies this genuine industrial tool across 14 departments, with specialist depth in cutting tools as an authorised distributor.
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 steel and stainless steel for installing helical wire thread inserts. It is ideal for repairing or reinforcing threads in industrial applications across machining, automotive, and heavy equipment sectors.
What are the specifications of the OSG STI Tap 0146401?
The OSG STI Tap 0146401 has a 5/16"-18 UNC thread, H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is a spiral-flute tap designed for steel and stainless steel, ensuring efficient chip evacuation in blind-hole threading operations.
Where to buy OSG STI Tap 0146401 worldwide?
3G Electric supplies the OSG STI Tap 0146401 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time; we source genuine OSG taps across our 14 industrial departments.
How to select the correct OSG STI tap for thread repair?
Select an OSG STI tap matching the original thread size and pitch, such as 5/16"-18 UNC. Use a bottoming chamfer for blind holes and a spiral-flute design for steel or stainless steel. Ensure the tap tolerance (H3 / 2B-3B) aligns with the insert and application requirements.
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Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute sti taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
