Value Collection JY8962607 Spiral Point Tap 1/4-20 Unc

Product Description

The VALUE COLLECTION JY8962607 is a spiral point tap designed to cut right-hand internal threads in through-hole applications. It is ground to a 1/4-20 UNC thread form with a plug chamfer, which provides a gradual lead-in and makes it well suited for threading holes that extend fully through the workpiece. The tap is manufactured from high speed steel (HSS) with a bright, uncoated finish and carries a thread limit designation of H11, indicating a slightly oversize ground thread for use in applications where plating or coating of the finished part is expected. Two flutes channel chips forward ahead of the cutting edge, keeping the hole clear during operation.

This tap is intended for general-purpose threading in ferrous and non-ferrous metals, plastics, and similar materials encountered in maintenance, repair, fabrication, and manufacturing environments. The plug chamfer style suits through-hole work on production lines, machine shops, and field repair tasks. It is installed in a standard tap wrench, tapping head, or CNC spindle and is appropriate for machinists, millwrights, and maintenance technicians working to inch-series thread standards.

Key Features

• 1/4-20 UNC thread form for common inch-series fastener applications
• Plug chamfer provides gradual thread lead-in, optimized for through-hole tapping
• Spiral point geometry pushes chips forward to keep the cutting zone clear
• High speed steel construction offers good wear resistance across a range of workpiece materials
• H11 thread limit accounts for oversize ground thread, suited to parts that will receive post-tap plating or coating
• Bright uncoated finish with no coolant-through requirement — compatible with flood, mist, or hand-applied cutting fluid

Compatibility

Designed as an OEM-style replacement or direct-use spiral point tap for any application requiring a 1/4-20 UNC right-hand thread in through-hole configurations.

Installation Notes

This tap is installed by qualified machinists or maintenance technicians using a tap wrench, tapping attachment, or CNC rigid-tapping spindle. Before tapping, verify the pilot hole diameter matches the recommended tap drill size for a 1/4-20 UNC thread and that the workpiece is securely fixtured. Apply appropriate cutting fluid to extend tap life and reduce heat buildup. Never reverse-drive a tap under power without confirming the machine supports rigid tapping or a tension-compression head to avoid tap breakage.