OSG Screw Thread Insert STI Tap: Spiral Fute, 1/4"-20 UNC, H3 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for steel and stainless steel, featuring a 1/4"-20 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer (MPN 0146108).
SKU 3G-OTH-244333
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for steel and stainless steel, featuring a 1/4"-20 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer (MPN 0146108).
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 screw thread inserts. It is commonly applied in aerospace, automotive, and industrial maintenance to repair or reinforce threaded holes without replacing the parent material.
What are the specifications of the OSG STI Tap 0146108?
The OSG STI Tap 0146108 has a thread size of 1/4"-20 UNC, a thread class of H3 / 2B-3B, 3 flutes, and a bottoming chamfer. It is a spiral-flute tap designed for steel and stainless steel, ensuring efficient chip evacuation during threading operations.
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 this OSG 0146108 tap.
How to select the correct OSG STI Tap for steel?
To select the correct OSG STI Tap for steel, match the thread size (e.g., 1/4"-20 UNC) and class (H3 / 2B-3B) to your insert requirements. Use a spiral-flute tap for deep blind holes in steel or stainless steel. Always verify the chamfer type—bottoming for threads near hole bottoms.
Used in
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.
