Hertel K014565AS Spiral Point Tap 5/16-24 Unf Hss

Product Description

The HERTEL K014565AS is a spiral point tap designed for threading 5/16-24 UNF holes in metalworking and machining applications. It features a plug chamfer style, two flutes, and is manufactured from high-speed steel with a bright, uncoated finish. The spiral point geometry pushes chips forward ahead of the tap, making it well suited for through-hole tapping operations. The H11 thread limit designates a slightly oversize tolerance, specifically 0.0050 inches oversize, which accommodates plated or coated fasteners and helps ensure consistent thread fit after finishing. Right-hand thread direction and a shank diameter of 0.3180 inches round out the core design.

This tap is used in general machining, fabrication, and maintenance environments where 5/16-24 UNF threads are required in through-hole applications. It is appropriate for use in steel, aluminum, brass, and similar machinable materials. Machinists, tool and die makers, and maintenance mechanics working in production shops or field repair settings will find this a standard-duty threading tool. The bright finish and high-speed steel construction support use with cutting fluids on manual machines as well as lower-speed CNC applications. Coolant-through is not supported on this model.

Key Features

• Spiral point design pushes chips forward, ideal for through-hole tapping
• 5/16-24 UNF thread size, right-hand direction
• H11 thread limit with 0.0050 inches oversize for post-plate or post-coat fitment
• High-speed steel construction for durability across common machinable materials
• Bright, uncoated finish compatible with standard cutting fluids
• 1.125 inch thread length, 0.3180 inch shank diameter

Compatibility

Designed as an OEM-style replacement or standard tooling choice for any manual lathe, drill press, tapping machine, or CNC setup requiring 5/16-24 UNF plug-style spiral point taps.

Installation Notes

This tap is installed by qualified machinists or maintenance mechanics using a standard tap wrench, tapping head, or CNC rigid tapping cycle. Ensure the workpiece is secured and the pilot hole is drilled to the correct tap drill size for 5/16-24 UNF threads before beginning. Apply cutting fluid appropriate for the workpiece material to extend tool life and improve thread quality. Never force a tap if resistance is felt; back off to clear chips and re-apply fluid.