OSG Spiral Flute Tap: M3.5x0.6 Metric, D4 / 4H-6H, 3 Flute
The OSG Spiral Flute Tap (MPN 2990501) is a general-purpose spiral-flute tap in M3.5x0.6 metric size. It features a D4 / 4H-6H tolerance class, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets your…
SKU 3G-OTH-230346
Need installation or engineering help?
Ask a question
Product Description
The OSG Spiral Flute Tap (MPN 2990501) is a general-purpose spiral-flute tap in M3.5x0.6 metric size. It features a D4 / 4H-6H tolerance class, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets your demand for this OSG tap and delivers it with specialist sourcing support across 14 industrial departments.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the OSG spiral flute tap M3.5x0.6 used for?
This OSG spiral flute tap is designed for threading blind holes in ferrous and non-ferrous materials. The spiral flute design evacuates chips upward, preventing clogging and enabling clean threads in deep or blind applications. It is commonly used in automotive, aerospace, and general manufacturing for precision threading.
What are the specifications of the OSG spiral flute tap MPN 2990501?
The OSG spiral flute tap has a metric size of M3.5x0.6 with a D4 / 4H-6H tolerance class. It features 3 flutes and a modified bottoming chamfer for threading close to the bottom of blind holes. The manufacturer part number is 2990501, and it is designed for general-purpose threading.
Where to buy OSG spiral flute taps worldwide?
You can source OSG spiral flute 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 MPN 2990501 or other OSG threading tools.
How to select the correct OSG spiral flute tap for blind holes?
Select an OSG spiral flute tap based on thread size, pitch, and tolerance class. For blind holes, choose a modified bottoming chamfer to maximize thread depth. Ensure the tap material matches your workpiece—HSS for general use, or coated variants for harder materials. Always verify the D4 / 4H-6H tolerance for fit requirements.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG general purpose spiral-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















