OSG Screw Thread Insert STI Tap: Spiral Point, 1/4"-20 UNC, H3 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap: Spiral Point (SKU 30100808, MPN 30100808) is a spiral-point STI tap for steel and stainless steel, sized 1/4"-20 UNC with H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. 3G…
SKU 3G-OTH-265361
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 Point (SKU 30100808, MPN 30100808) is a spiral-point STI tap for steel and stainless steel, sized 1/4"-20 UNC with H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. 3G Electric interprets your demand for this precision threading tool, sources it from OSG, and supports your application with specialist expertise across 14 industrial 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 steel and stainless steel to accept helical wire thread inserts. It is commonly used in aerospace, automotive, and industrial maintenance applications where stripped threads must be repaired or reinforced.
What are the specifications of the OSG 30100808 STI Tap?
The OSG 30100808 is a spiral-point STI tap with 1/4"-20 UNC thread, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for threading holes that will receive screw thread inserts in steel and stainless steel workpieces.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI Taps like the 30100808 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote on this spiral-point tap for steel and stainless steel applications.
How to select the correct STI tap size for a thread repair?
Select an STI tap that matches the original thread size and pitch, such as 1/4"-20 UNC. The tap tolerance (e.g., H3 / 2B-3B) must align with the insert manufacturer's specifications. Always use a plug chamfer for through-hole repairs and verify the tap is rated for the workpiece material.
Used in
Common applications for OSGOSG Products
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.
