OSG Screw Thread Insert STI Tap: Spiral Fute, #4-48 UNF, H2 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-flute tap for steel and stainless steel, specified as #4-48 UNF with H2 / 2B-3B tolerance and a bottoming chamfer. It features 3 flutes and is identified by…
SKU 3G-OTH-244396
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
Need installation or engineering help?
Ask a question
Product Description
The OSG Screw Thread Insert STI Tap is a spiral-flute tap for steel and stainless steel, specified as #4-48 UNF with H2 / 2B-3B tolerance and a bottoming chamfer. It features 3 flutes and is identified by manufacturer part number 30200208.
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 accepting helical wire thread inserts. The #4-48 UNF size with bottoming chamfer allows threading close to the bottom of a blind hole, restoring or reinforcing damaged threads.
What are the specifications of the OSG STI Tap #4-48 UNF?
This OSG STI Tap has a #4-48 UNF thread size, H2 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is a spiral-flute design for steel and stainless steel. The manufacturer part number is 30200208. It is designed for use with screw thread inserts.
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 #4-48 UNF STI Tap (MPN 30200208).
How to select the correct OSG STI Tap for a repair job?
Select an OSG STI Tap that matches the thread size and pitch of the insert you plan to install. For steel or stainless steel, choose a spiral-flute design like this #4-48 UNF tap. Ensure the chamfer type (bottoming for blind holes) and tolerance (H2 / 2B-3B) suit your application.
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.
