OSG Screw Thread Insert STI Tap: Spiral Fute, M8x1.25 Metric, D3 / 4H-6H
The OSG Screw Thread Insert STI Tap is a spiral-flute tap for steel and stainless steel, specified as M8x1.25 Metric with a D3 / 4H-6H tolerance class and 3 flutes (MPN 34300701). 3G Electric interprets this demand…
SKU 3G-OTH-244367
Need installation or engineering help?
Ask a question
Product Description
The OSG Screw Thread Insert STI Tap is a spiral-flute tap for steel and stainless steel, specified as M8x1.25 Metric with a D3 / 4H-6H tolerance class and 3 flutes (MPN 34300701). 3G Electric interprets this demand and sources the genuine OSG product, supporting your threading operations across 14 industrial departments with specialist depth in cutting tools.
Frequently Asked Questions
What is the OSG Screw Thread Insert STI Tap used for?
The OSG Screw Thread Insert STI Tap is used to cut internal threads in steel and stainless steel for installing screw thread inserts. It is commonly applied in automotive, aerospace, and general manufacturing where strong, wear-resistant threads are required in metal components.
What are the specifications of the OSG STI Tap MPN 34300701?
The OSG STI Tap MPN 34300701 is a spiral-flute tap with M8x1.25 metric thread size, D3 / 4H-6H tolerance class, and 3 flutes. It is designed for threading holes in steel and stainless steel before inserting screw thread inserts. The spiral flute design aids chip evacuation.
Where to buy OSG STI Taps in worldwide?
You can source OSG STI 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 the OSG Screw Thread Insert STI Tap MPN 34300701.
How to select the correct OSG STI Tap for a thread insert?
Select an OSG STI Tap based on the thread insert's size and material. For M8x1.25 inserts in steel or stainless steel, use the OSG spiral-flute tap MPN 34300701 with D3 / 4H-6H tolerance. Ensure the tap drill size matches the insert manufacturer's recommendation for proper thread engagement.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute 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.















