OSG Screw Thread Insert STI Tap: Spiral Fute, 1/2"-13 UNC, H4 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap (MPN 0147701) is a spiral-flute tap for steel and stainless steel, sized 1/2"-13 UNC with a bottoming chamfer. It features 4 flutes and an H4 / 2B-3B tolerance class, designed for…
SKU 3G-OTH-244336
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 (MPN 0147701) is a spiral-flute tap for steel and stainless steel, sized 1/2"-13 UNC with a bottoming chamfer. It features 4 flutes and an H4 / 2B-3B tolerance class, designed for threading holes to accept screw thread inserts.
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 automotive, aerospace, and general manufacturing where strong, wear-resistant threads are required.
What are the specifications of the OSG STI Tap 1/2"-13 UNC?
The OSG STI Tap has a 1/2"-13 UNC thread size, H4 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is designed for spiral-flute tapping in steel and stainless steel. The manufacturer part number is 0147701.
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 tap.
How to select the correct OSG STI Tap for steel?
Select an OSG STI Tap based on thread size, tolerance class, and material. For steel and stainless steel, use a spiral-flute tap with a bottoming chamfer for blind holes. Ensure the tap matches the insert's thread specification, such as 1/2"-13 UNC with H4 / 2B-3B tolerance.
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.
