OSG Oversized Spiral-Flute Tap: 5/16-24 UNF

This OSG spiral flute tap is designed for threading blind holes in materials that produce stringy chips, such as steel and aluminum. The spiral flute design lifts chips out of the hole, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general machining applications.

The OSG tap part number 2941501 is a spiral flute tap with thread size 5/16-24 UNF, H11 tolerance, 3 flutes, and a modified bottoming chamfer. It is an oversized tap, meaning it cuts threads slightly larger than standard for applications requiring a looser fit or coating allowance.

3G Electric supplies OSG taps like the 2941501 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG cutting tools.

Select an OSG spiral flute tap based on thread size, pitch, and material. For blind holes, spiral flute taps are ideal as they evacuate chips upward. Consider the chamfer type: modified bottoming chamfer allows threading close to the hole bottom. Always match the tap tolerance (e.g., H11) to your required thread fit.