OSG Screw Thread Insert STI Tap: Spiral Point, 3/4"-16 UNF, H4 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap for multiple materials, specified as 3/4"-16 UNF with H4 / 2B-3B tolerance, 4 flutes, and a plug chamfer (MPN 31403501). 3G Electric interprets this demand…
SKU 3G-OTH-284710
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 3/4"-16 UNF with H4 / 2B-3B tolerance, 4 flutes, and a plug chamfer (MPN 31403501). 3G Electric interprets this demand and sources the genuine OSG product, backed by specialist depth in industrial tooling across 14 departments.
Frequently Asked Questions
What is an OSG Screw Thread Insert STI Tap used for?
An OSG Screw Thread Insert STI Tap cuts internal threads in multiple materials to accept helical wire thread inserts. It is commonly used in aerospace, automotive, and general manufacturing to repair or reinforce tapped holes in aluminum, steel, and cast iron.
What are the specifications of the OSG STI Tap 31403501?
The OSG STI Tap 31403501 is a spiral-point, plug-chamfer tap with a 3/4"-16 UNF thread, 4 flutes, and a tolerance of H4 / 2B-3B. It is designed for through-hole tapping in multiple materials and is manufactured by OSG.
Where to buy OSG STI Tap 31403501 worldwide?
3G Electric supplies the OSG STI Tap 31403501 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this precision threading tool.
How to select the correct STI tap for thread inserts?
Select an STI tap with the same thread size and pitch as the insert, such as 3/4"-16 UNF. Use a plug chamfer for through holes and a bottoming chamfer for blind holes. Match the tap tolerance (e.g., H4 / 2B-3B) to the required class of fit.
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.
