OSG Screw Thread Insert STI Tap: Spiral Point, 5/16"-18 UNC, H2 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap for multiple materials, specified as 5/16"-18 UNC with H2 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 31400901). 3G Electric interprets this demand…
SKU 3G-OTH-284702
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 multiple materials, specified as 5/16"-18 UNC with H2 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 31400901). 3G Electric interprets this demand and sources the genuine OSG tool, backed by specialist expertise across 14 industrial departments including cutting tools.
Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap 31400901 used for?
This spiral-point STI tap is designed for cutting internal threads in multiple materials before installing screw thread inserts. It is commonly used in automotive, aerospace, and general manufacturing applications where thread repair or reinforcement is required.
What are the specifications of the OSG 31400901 STI tap?
The OSG 31400901 is a spiral-point STI tap with a 5/16"-18 UNC thread, H2 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for tapping holes that will accept screw thread inserts, ensuring accurate thread class fit.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source the OSG 31400901 STI tap or any OSG tooling for your production needs.
How to select the correct OSG STI tap for thread inserts?
Select an STI tap based on the insert's thread size and pitch, such as 5/16"-18 UNC. The tap must match the insert's internal thread class (e.g., H2 / 2B-3B). OSG spiral-point taps are ideal for through-hole applications, providing efficient chip evacuation.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point sti taps for multiple materials. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
