OSG Screw Thread Insert STI Tap: Spiral Point, 1"-8 UNC, H4 / 2B, 4 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for threading multiple materials, featuring a 1"-8 UNC thread size, H4 / 2B tolerance, 4 flutes, and a plug chamfer (MPN 31404008). 3G Electric…
SKU 3G-OTH-284711
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 designed for threading multiple materials, featuring a 1"-8 UNC thread size, H4 / 2B tolerance, 4 flutes, and a plug chamfer (MPN 31404008). 3G Electric interprets this demand and sources the genuine OSG product, supporting your machining operations across 14 industrial departments with specialist expertise in cutting tools and controls.
Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
This OSG spiral-point STI tap cuts internal threads in multiple materials for installing screw thread inserts. It is commonly used in automotive, aerospace, and general manufacturing applications where strong, replaceable threads are required in aluminum, steel, or cast iron.
What are the specifications of the OSG STI Tap 31404008?
The OSG STI tap has a UNC thread size of 1"-8, with H4 / 2B tolerance and a plug chamfer. It features 4 flutes and a spiral-point design for efficient chip evacuation. The manufacturer part number is 31404008.
Where to buy OSG STI Tap 31404008 worldwide?
You can source the OSG STI Tap 31404008 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring your order reaches any international location reliably.
How to select the correct OSG STI tap for a thread insert?
Select an STI tap that matches the thread insert's size and tolerance, such as the OSG 1"-8 UNC with H4 / 2B for a 2B class fit. Ensure the tap has a plug chamfer for general-purpose threading and a spiral-point design for through-hole applications.
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.
