OSG Screw Thread Insert STI Tap: Spiral Fute, 7/16"-14 UNC, H4 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap (Spiral Flute, MPN 0147308) is a 7/16"-14 UNC bottoming-chamfer tap with H4 / 2B-3B tolerance and 3 flutes, designed for threading steel and stainless steel. 3G Electric interprets…
SKU 3G-OTH-244385
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The OSG Screw Thread Insert STI Tap (Spiral Flute, MPN 0147308) is a 7/16"-14 UNC bottoming-chamfer tap with H4 / 2B-3B tolerance and 3 flutes, designed for threading steel and stainless steel. 3G Electric interprets your demand for this OEM-specified tool, sources it from our global network, and delivers it with accountable support across 14 industrial departments — with specialist depth in combustion, pumps and controls.
Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
This OSG spiral-flute STI tap is designed for cutting internal threads in steel and stainless steel before installing screw thread inserts. It is commonly used in automotive, aerospace, and general manufacturing applications where strong, wear-resistant threads are required.
What are the specifications of the OSG STI Tap 0147308?
The OSG STI tap has a UNC thread size of 7/16"-14, a tolerance class of H4 / 2B-3B, 3 flutes, and a bottoming chamfer. It is a spiral-flute type optimized for steel and stainless steel. The manufacturer part number is 0147308.
Where to buy OSG STI Tap 0147308 worldwide?
3G Electric supplies the OSG STI Tap 0147308 to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver globally.
How to select the correct OSG STI tap for a thread insert?
Select an STI tap that matches the thread insert's size and tolerance. For a 7/16"-14 UNC insert, use a tap with the same thread designation. The H4 / 2B-3B tolerance ensures proper fit. OSG taps are designed for steel and stainless steel; verify material compatibility before use.
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.
