Value Collection MSC-04543203 Spiral Point Tap 7/16-20 Unf

Product Description

The VALUE COLLECTION MSC-04543203 is a spiral point tap designed for cutting right-hand internal threads in a 7/16-20 UNF thread form. Built from high speed steel with a bright, uncoated finish, this plug-chamfer tap drives chips forward ahead of the cutting edge, making it well suited for through-hole tapping operations. The H3 thread limit provides controlled oversize tolerance for plated or tight-tolerance applications. With 3 flutes and a 1.4375-inch thread length, it delivers consistent thread engagement across a range of materials commonly found in manufacturing and maintenance work.

This tap is used in machining, maintenance, repair, and fabrication environments where 7/16-20 UNF threads are required. The plug chamfer style, with typically 3 to 5 lead threads, makes it a versatile choice for both hand tapping and machine tapping in through-hole applications. It is appropriate for use in mild steel, aluminum, brass, and similar machinable materials. Machinists, tool-and-die makers, and maintenance technicians working on mechanical assemblies, fixtures, and equipment repairs are the primary users of this tap.

Key Features

• Spiral point geometry pushes chips forward, reducing clogging in through-hole applications
• 7/16-20 UNF thread form for fine-pitch fastener applications
• H3 thread limit for controlled tolerance, suitable for plated or close-fit threads
• High speed steel construction provides durability across a range of machinable metals
• Plug chamfer allows use in both hand and machine tapping setups
• Bright, uncoated finish — no coating buildup to affect thread sizing

Compatibility

Designed as a direct-use spiral point tap for any application requiring a right-hand 7/16-20 UNF internal thread in a through-hole configuration. Compatible with standard tap holders, tapping heads, and CNC rigid-tap chucks sized for the corresponding tap shank.

Installation Notes

This tap is installed by a machinist or maintenance technician using a standard tap wrench, tapping head, or CNC machine with rigid tapping capability. Always ensure the workpiece is securely fixtured and the pilot hole is drilled to the correct tap drill diameter for 7/16-20 UNF before beginning the tapping operation. Apply appropriate cutting fluid or tapping compound to extend tool life and improve thread finish. Do not reverse-feed the tap without breaking the chip, as this can cause tap breakage in tighter materials.