Value Collection MSC-04473203 Straight Flute Tap 7/16-20 Unf

Product Description

The VALUE COLLECTION MSC-04473203 is a straight flute plug tap designed for cutting right-hand internal threads in through-holes and shallow blind holes. Manufactured from high-speed steel with a bright, uncoated finish, this tap cuts 7/16-20 UNF threads and carries an H3 thread limit tolerance for consistent fit across production and maintenance applications. The plug chamfer — typically 3 to 5 threads — allows the tap to start easily and distribute cutting load gradually. It is used by machinists, maintenance technicians, and trade professionals working in metal fabrication, equipment repair, and general mechanical assembly.

This tap is suited for threading operations in ferrous and non-ferrous metals where 7/16-20 UNF fastener threads are required. With a thread length of 1.4375 inches and an overall length of approximately 3.16 inches, it fits standard tap handles and machine holders used in hand tapping, drill press, and CNC rigid-tapping setups at appropriate speeds. The 4-flute design provides good chip control in short-chipping materials and delivers a clean thread form in moderate-depth holes.

Key Features

• 7/16-20 UNF thread form for fine-pitch fastener applications
• 4 straight flutes for chip clearance in short-chipping materials
• Plug chamfer (3-5 thread lead) for guided starting and gradual load distribution
• H3 thread limit tolerance for standard UNF fit classes
• High-speed steel construction for durability across a range of common metals
• Bright, uncoated finish suitable for use with cutting fluid or tapping compound

Compatibility

Designed as a standard replacement or general-use plug tap for any application requiring 7/16-20 UNF right-hand internal threads.

Installation Notes

Tapping should be performed by a machinist or qualified technician using a properly aligned tap wrench, tapping head, or machine spindle. Always apply a suitable cutting fluid or tapping compound to reduce friction and extend tap life. Ensure the workpiece is securely clamped and the tap is started perpendicular to the work surface to prevent thread cross-threading or tap breakage. Follow applicable shop safety procedures when operating drilling or tapping equipment.