Keystone Threaded Products UM014AG1F002150 Lh Hex Nut

Product Description

The KEYSTONE THREADED PRODUCTS UM014AG1F002150 is a left-hand threaded hex nut machined to Acme thread standards. It carries a 7/8-6 thread size with a 2G fit class, meaning it is suited for applications where controlled clearance and smooth engagement are required. The nut measures 1-7/16 inches across the flats and stands 55/64 inches in height. Constructed from steel, it provides reliable strength in mechanical assemblies that demand a left-hand thread direction to resist loosening from counter-clockwise rotation. Machinists, millwrights, and maintenance technicians typically install this style of fastener in industrial equipment, lead screw assemblies, and specialty mechanical linkages.

Left-hand Acme hex nuts see use in industrial machinery, linear actuator assemblies, and conveyor or drive systems where reverse-thread fasteners prevent unintended backing out under rotational loads. This nut is appropriate for applications requiring an Acme thread profile, which provides a wider thread form and greater load-carrying capacity compared to standard V-thread fasteners. It is suited for both new builds and replacement work in manufacturing and maintenance environments where left-hand thread hardware is specified.

Key Features

• Left-hand Acme thread direction resists loosening from counter-clockwise rotation
• 7/8-6 thread size with 2G fit class for controlled clearance engagement
• 1-7/16 inches (1.4375 inches) width across flats for standard hex wrench fitment
• 55/64 inches height provides full thread engagement depth
• Steel construction for durability in industrial mechanical assemblies
• Acme thread profile suited for lead screw and linear motion applications

Compatibility

Designed for use with 7/8-6 left-hand Acme threaded rods or lead screws requiring a 2G fit class hex nut in steel construction.

Installation Notes

Installation should be performed by qualified machinists or maintenance technicians familiar with left-hand thread fastener assemblies. Always verify thread direction before installation - left-hand nuts tighten counter-clockwise and loosen clockwise. Use an appropriate hex wrench or open-end wrench sized for 1-7/16 inches across the flats. De-energize and lock out any equipment before servicing components that include this fastener.