OSG Screw Thread Insert STI Tap: Spiral Point, 5/8"-18 UNF, H4 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap for steel and stainless steel, specified as 5/8"-18 UNF with H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 30103401).
SKU 3G-OTH-265362
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-point tap for steel and stainless steel, specified as 5/8"-18 UNF with H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 30103401).
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 stripped threads, ensuring strong, reusable connections.
What are the specifications of the OSG STI Tap 30103401?
The OSG STI Tap 30103401 is a spiral-point tap with a 5/8"-18 UNF thread, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for threading holes in steel and stainless steel to accept screw thread inserts, providing precise thread fit.
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 times on the OSG 30103401 tap.
How to select the correct OSG STI Tap for a repair job?
To select the correct OSG STI Tap, match the tap's thread size and pitch to the insert's requirements. For steel or stainless steel, choose a spiral-point tap like the 5/8"-18 UNF with H4 tolerance. Ensure the chamfer type (plug) suits the hole depth and material hardness.
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.
