OSG 3/8"-16 UNC Spiral-Point STI Tap for Steel & Stainless Steel
The OSG Screw Thread Insert STI Tap is a spiral-point tap for steel and stainless steel, specified as 3/8"-16 UNC with H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 30101308).
SKU 3G-OTH-265449
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 is a spiral-point tap for steel and stainless steel, specified as 3/8"-16 UNC with H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 30101308).
Frequently Asked Questions
What is the OSG 30101308 STI tap used for?
The OSG 30101308 is a spiral-point STI tap designed for cutting internal threads in steel and stainless steel. It is used to prepare holes for screw thread inserts, ensuring threads meet H3 / 2B-3B tolerance classes. Common applications include automotive, aerospace, and general manufacturing where strong, replaceable threads are required.
What are the specifications of the OSG 30101308 STI tap?
The OSG 30101308 is a 3/8"-16 UNC spiral-point STI tap with a plug chamfer and 3 flutes. It has a thread tolerance of H3 / 2B-3B, making it suitable for steel and stainless steel. The spiral-point design pushes chips forward, ideal for through-hole threading. Manufacturer part number is 30101308.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps like the 30101308 to customers worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver genuine OSG tooling for manufacturing and maintenance operations.
How to select the correct STI tap for a 3/8"-16 UNC insert?
For a 3/8"-16 UNC screw thread insert, select an STI tap with the same thread size and pitch, such as the OSG 30101308. Ensure the tap tolerance (H3 / 2B-3B) matches the insert's required thread class. Use a plug chamfer for through holes and spiral-point geometry for steel or stainless steel to improve chip evacuation.
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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.
