Value Collection JY4879029 Hand Tap 2-8 Uns Plug Rh H6

Product Description

The VALUE COLLECTION JY4879029 is a straight-flute hand tap designed for cutting 2-8 UNS internal threads in a wide range of materials. Built from high speed steel (HSS) with a bright, uncoated finish, this tap delivers consistent thread geometry and adequate wear resistance for general-purpose tapping operations. The plug chamfer — approximately 3 to 5 threads of lead — makes it suited for through-hole applications where the tap can pass fully through the workpiece. With a thread limit of H6, it produces threads on the tighter end of the tolerance range, which is appropriate for standard-fit fastener assemblies. Machinists and tool-and-die professionals rely on this tap for moderate-production and repair work.

This tap is used in machine shops, maintenance facilities, and manufacturing environments requiring 2-8 UNS threaded holes. The 2-8 designation indicates a 2-inch nominal diameter with 8 threads per inch, making this a large-diameter tap typically used in heavy industrial, structural, or tooling applications. The straight-flute design is best suited for through-hole tapping in shorter-chipping materials such as cast iron, brass, and free-machining steels. It is intended for hand tapping operations or use in a tapping fixture with appropriate torque control.

Key Features

• 2-8 UNS thread form with plug chamfer for through-hole applications
• High speed steel construction for general-purpose cutting performance
• Bright, uncoated finish suitable for use with standard cutting fluids
• H6 thread limit for consistent, close-tolerance thread production
• 6-flute straight-flute design for stability in short-chipping materials
• Right-hand thread direction for standard fastener compatibility

Compatibility

Designed as an OEM-style replacement or direct-use hand tap for applications requiring 2-8 UNS internal threads in through-hole workpieces across general industrial and maintenance settings.

Installation Notes

This tap is installed by machinists or tool-and-die professionals using a tap wrench or tapping fixture rated for large-diameter taps. Ensure the workpiece is securely fixtured and properly piloted before beginning the tapping operation. Apply an appropriate cutting fluid for the workpiece material to reduce heat buildup and extend tap life. Do not exceed the torque capacity of the tap wrench, and back off periodically to break chips when tapping deeper holes.