Value Collection MSC-04913224 Straight Flute Tap 7/16-20 Unf

Product Description

The VALUE COLLECTION MSC-04913224 is a straight flute tap designed for cutting 7/16-20 UNF internal threads in a left-hand direction. Built from high-speed steel with a bright uncoated finish, this tap features a taper chamfer for gradual thread engagement and controlled cutting action. It carries an H3 thread limit, making it suitable for applications requiring a close tolerance fit. With 4 flutes and a thread length of 1-7/16 inches, it provides adequate chip clearance in through-hole tapping operations. Machinists and toolroom professionals use this tap in manual or low-speed machine tapping setups where precise thread form is required.

This tap is intended for use in metalworking and machining applications where left-hand UNF threads are specified. Left-hand taps are typically called out in applications where reverse loading or counter-rotation would loosen a standard right-hand fastener. The taper chamfer style is best suited for through-hole applications, allowing the tap to start and advance smoothly without excessive torque. It is commonly used in job shops, maintenance and repair operations, and production environments working with steel, aluminum, and similar machinable metals.

Key Features

• 7/16-20 UNF thread form for fine-pitch internal threading
• Left-hand thread direction for specialized fastening applications
• Taper chamfer for easy starting and progressive thread engagement
• H3 thread limit for controlled tolerance fits
• 4 straight flutes for adequate chip clearance in through-hole tapping
• High-speed steel construction for durability in general machining use

Compatibility

Designed as an OEM-style toolroom replacement tap for through-hole applications requiring 7/16-20 UNF left-hand threads in machinable metals.

Installation Notes

This tap should be installed and used by experienced machinists or toolroom personnel familiar with tapping operations. Always secure the workpiece and use appropriate tapping fluid for the material being threaded. Confirm the correct drill size for 7/16-20 UNF threads before starting. Taper taps are intended for through-hole use and should not be forced to the bottom of a blind hole.