Value Collection JY4916110 Straight Flute Tap 5/8-11 Unc

Product Description

The VALUE COLLECTION JY4916110 is a straight flute hand tap designed for cutting internal 5/8-11 UNC threads in a left-hand direction. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this tap delivers reliable performance in general-purpose threading applications. The plug chamfer style provides a gradual thread lead-in, making it suitable for through-holes and moderately deep blind holes. At 3-13/16 inches overall length, it fits standard tap wrenches and machine setups. The H3 thread limit and 3B class of fit ensure dimensional accuracy consistent with standard UNC tolerance requirements. The 4-flute geometry provides adequate chip clearance and stability during the threading operation.

This tap is intended for machinists, toolmakers, and maintenance technicians working with left-hand threaded fastener applications in steel, cast iron, aluminum, and similar machinable materials. Left-hand taps are specified when a left-hand threaded hole is required, such as for components that must resist loosening under counterclockwise rotation. The plug chamfer makes this tap versatile across both manual and light machine tapping setups in job shop, production, and MRO environments.

Key Features

• 5/8-11 UNC thread form with 3B class of fit for standard tolerance internal threads
• Left-hand thread direction for specialized fastener and assembly applications
• Plug chamfer provides gradual thread engagement, suitable for through-holes and moderate-depth blind holes
• 4-flute design offers chip clearance and cutting stability
• H3 thread limit for controlled fit within UNC tolerance bands
• High-speed steel construction with bright uncoated finish for general-purpose use

Compatibility

Designed as an OEM-style replacement or direct-use straight flute tap compatible with standard 5/8-11 UNC left-hand threading applications in manual tap wrenches and compatible machine tapping setups.

Installation Notes

Installation is performed by machinists or toolroom technicians using a tap wrench or tapping fixture. Always ensure the workpiece is properly secured and the pilot hole is drilled to the correct tap drill diameter before threading. Use appropriate cutting fluid for the workpiece material to reduce friction and extend tap life. Left-hand taps must be turned counterclockwise to cut; confirm thread direction before use to avoid tap breakage.