OSG Screw Thread Insert STI Tap: Spiral Point, #4-40 UNC, H2 / 2B-3B, 2 Flute
The OSG Screw Thread Insert STI Tap: Spiral Point (MPN 1712508) is a #4-40 UNC, H2 / 2B-3B, 2-flute, plug-chamfer tap designed for steel and stainless steel. 3G Electric interprets demand and delivers this genuine…
SKU 3G-OTH-265470
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: Spiral Point (MPN 1712508) is a #4-40 UNC, H2 / 2B-3B, 2-flute, plug-chamfer tap designed for steel and stainless steel. 3G Electric interprets demand and delivers this genuine industrial tool across 14 departments, with specialist depth in combustion, pumps and controls 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 screw thread inserts. It is ideal for aerospace, automotive, and general manufacturing applications requiring strong, wear-resistant threads.
What are the specifications of the OSG STI Tap #4-40 UNC?
This OSG STI Tap is #4-40 UNC with H2 / 2B-3B tolerance, 2 flutes, and a plug chamfer. It is a spiral-point design for steel and stainless steel, part number 1712508. The H2 limit ensures precise thread fit for insert installation.
Where to buy OSG STI Taps for steel worldwide?
3G Electric supplies OSG STI Taps like the #4-40 UNC model worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG cutting tools.
How to select the correct STI tap size for a thread insert?
Select an STI tap that matches the thread size and pitch of the insert, such as #4-40 UNC. The tap tolerance (e.g., H2 / 2B-3B) must align with the insert's internal thread class. Always verify the insert manufacturer's recommendations for proper fit.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point 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.
