Value Collection JY4843256 Hand Tap 7/16-28 Unef Plug Hss

Product Description

The VALUE COLLECTION JY4843256 is a 7/16-28 UNEF straight flute hand tap designed for cutting right-hand internal threads in a range of workpiece materials. Built from high speed steel (HSS) with a bright, uncoated finish, it delivers consistent performance in manual tapping operations. The plug chamfer style features a gradual lead-in of several threads, making it well suited for through-hole applications where the tap can pass fully through the material. At 3-5/32 inches overall length with an H3 thread limit, this tap holds tight tolerances for controlled thread fit. Machinists, toolmakers, and maintenance mechanics reach for this tap in production and repair work alike.

This tap is intended for hand tapping operations in ferrous and non-ferrous metals, plastics, and similar materials where a 7/16-28 UNEF thread form is required. The straight flute design works best in through-hole situations where chips can fall freely. The H3 tolerance class is appropriate when a standard class 2B or 3B thread fit is the target, as is common in precision mechanical assemblies and threaded fastener repairs.

Key Features

• 7/16-28 UNEF thread form for fine-pitch internal threading
• Plug chamfer for gradual thread engagement in through-hole applications
• High speed steel construction for durability across a broad range of materials
• Bright uncoated finish suitable for use with standard cutting fluids
• H3 thread limit for controlled, consistent fit
• 4-flute straight flute geometry for chip clearance in through-hole work

Compatibility

Designed as a standard replacement or toolroom hand tap for applications requiring a 7/16-28 UNEF right-hand internal thread.

Installation Notes

This tap is installed by hand using a tap wrench with an appropriate square-drive collet. Secure the workpiece firmly before starting the tap to maintain alignment and prevent thread distortion. Apply a suitable cutting fluid throughout the tapping operation to reduce heat buildup and extend tool life. Reverse the tap periodically to break and clear chips, particularly in deeper holes.