OSG Screw Thread Insert STI Tap: Spiral Point, M4x0.7 Metric, D3 / 4H-6H, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap for steel and stainless steel, specified as M4x0.7 Metric with a D3 / 4H-6H tolerance, 3 flutes, and a plug chamfer (MPN 34200401). 3G Electric sources this…
SKU 3G-OTH-265428
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 steel and stainless steel, specified as M4x0.7 Metric with a D3 / 4H-6H tolerance, 3 flutes, and a plug chamfer (MPN 34200401). 3G Electric sources this genuine OSG tool as part of our industrial supply across 14 departments, with specialist expertise in cutting tools and precision threading.
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 steel and stainless steel before installing screw thread inserts. It is commonly used in automotive, aerospace, and general manufacturing applications where strong, wear-resistant threads are required.
What are the specifications of the OSG 34200401 STI Tap?
The OSG 34200401 is an M4x0.7 metric spiral-point STI tap with a D3 / 4H-6H tolerance, 3 flutes, and a plug chamfer. It is designed for threading holes in steel and stainless steel prior to inserting screw thread inserts.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG 34200401 or other OSG threading tools.
How to select the correct STI tap size for M4 inserts?
For M4x0.7 screw thread inserts, use an STI tap marked M4x0.7 with a D3 / 4H-6H tolerance class. The tap diameter is larger than a standard M4 tap to accommodate the insert. Always match the tap to the insert manufacturer's specifications for proper thread engagement.
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.
