Value Collection JY4840237 Hand Tap 1/4-24 Uns Bottoming Hss

Product Description

The VALUE COLLECTION JY4840237 is a 1/4-24 UNS bottoming hand tap designed for cutting internal threads in through-holes and blind holes where threads must extend close to the bottom. Ground from high speed steel (HSS) with a bright, uncoated finish, this tap delivers reliable performance across a range of workpiece materials. The 4-flute straight flute geometry provides good chip support and thread form stability during hand tapping operations. Overall length is 2.5 inches, and the H3 thread limit designation indicates a ground tolerance for producing threads toward the high end of the standard tolerance range, suitable for plated or close-tolerance applications.

This tap is suited for use in maintenance, repair, and fabrication shops where 1/4-24 UNS internal threads are required. The bottoming chamfer — typically 1 to 2 thread leads — allows threading to the bottom of a blind hole when used after a taper or plug tap to start the thread. It is appropriate for use by machinists, millwrights, pipefitters, and general trade professionals working with metals and similar materials requiring hand-tapped threads.

Key Features

• Bottoming chamfer allows threading to the bottom of blind holes
• H3 thread limit suits close-tolerance and post-plating applications
• 4-flute straight flute design provides stability and thread form accuracy
• High speed steel construction offers durability across common workpiece materials
• Bright, uncoated finish — compatible with cutting oils and standard tapping fluids
• Right-hand thread direction for standard fastener applications

Compatibility

Designed as a standard hand tap for cutting 1/4-24 UNS right-hand internal threads in applications requiring a bottoming chamfer. Intended for use with a standard tap wrench sized for the shank.

Installation Notes

This tap is intended for use by trained machinists or trade professionals performing hand tapping operations. Always secure the workpiece before tapping and use an appropriate cutting oil or tapping fluid to extend tool life and improve thread quality. Back off periodically during tapping to break chips. When threading blind holes, use a taper or plug tap first to establish the thread before finishing with this bottoming tap.