OSG Screw Thread Insert STI Tap: Spiral Fute, M8x1.25 Metric, D3 / 4H-6H, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for M8x1.25 metric threads, with a D3 / 4H-6H tolerance class, made from high-speed steel and featuring 3 flutes (MPN 10900700). 3G Electric…
SKU 3G-OTH-273387
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-flute tap designed for M8x1.25 metric threads, with a D3 / 4H-6H tolerance class, made from high-speed steel and featuring 3 flutes (MPN 10900700). 3G Electric interprets this demand and sources the genuine OSG tool, backed by our specialist expertise across 14 industrial departments — including cutting tools — to ensure you get the right solution.
Frequently Asked Questions
What is an OSG spiral-flute STI tap used for?
An OSG spiral-flute STI tap is used to cut internal threads in pre-drilled holes for screw thread inserts. It is commonly applied in aerospace, automotive, and general manufacturing where strong, wear-resistant threads are needed in softer materials like aluminum or cast iron.
What are the specifications of the OSG STI tap M8x1.25?
This OSG STI tap has a metric M8x1.25 thread size, a D3 / 4H-6H tolerance class, 3 flutes, and is made of high-speed steel. The manufacturer part number is 10900700. It is designed for cutting threads that accept screw thread inserts.
Where to buy OSG taps in worldwide?
You can source OSG taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this M8x1.25 spiral-flute STI tap.
How to select the correct OSG STI tap size?
To select the correct OSG STI tap, match the tap thread size to the insert's internal thread requirement. For an M8x1.25 insert, use this STI tap with a D3 / 4H-6H tolerance. Always verify the hole diameter and material hardness before tapping to ensure proper thread fit.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
