OSG Screw Thread Insert STI Tap: Spiral Point, 3/8"-24 UNF, H3 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap for nickel and titanium, sized 3/8"-24 UNF with H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 31420808). 3G Electric sources this specialist tool…
SKU 3G-OTH-279735
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 nickel and titanium, sized 3/8"-24 UNF with H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 31420808). 3G Electric sources this specialist tool across 14 industrial departments, with deep expertise in combustion, pumps, and controls as an authorised distributor.
Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
This OSG spiral-point STI tap is designed for cutting internal threads in nickel and titanium alloys before installing screw thread inserts. It is commonly used in aerospace, automotive, and industrial applications requiring strong, wear-resistant threads in hard materials.
What are the specifications of the OSG 31420808 STI Tap?
The OSG 31420808 is a spiral-point STI tap with 3/8"-24 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is engineered for threading nickel and titanium alloys, ensuring precise fit for screw thread inserts.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI taps like the 31420808 to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this and other OSG threading tools.
How to select the correct OSG STI Tap for nickel alloys?
Select an OSG STI tap with the correct thread size (e.g., 3/8"-24 UNF), tolerance class (H3 for 2B-3B fit), and spiral-point geometry for nickel alloys. Use a plug chamfer for through holes. Always match the tap to the insert manufacturer's specifications for optimal thread quality.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point sti taps for nickel & titanium. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
