Keystone Threaded Products UM008AG1A001260 Hex Nut

Product Description

The KEYSTONE THREADED PRODUCTS UM008AG1A001260 is a 1/2-8 Acme thread hex nut machined from 1215 and 12L14 free-machining steel. It carries a 2G thread fit class and a right-hand thread direction, making it a standard-duty fastener for lead screw assemblies, actuators, and linear motion applications. The nut measures 7/8 inches across the flats and 31/64 inches in height, with a decimal flat width of 0.8750 inches. At 0.065 pounds, it is a lightweight but structurally sound component suited for mechanical assemblies where Acme thread engagement is required. Licensed tradespeople and maintenance mechanics install this nut as part of precision fastening or motion-control systems.

This hex nut is designed for use in industrial and commercial mechanical assemblies that rely on Acme thread profiles. Typical applications include linear actuators, jack screws, vises, machine tool slides, and feed screw mechanisms where controlled linear movement or clamping force is needed. The 1215 and 12L14 steel grades offer good machinability and moderate strength, making this nut well suited for moderate-load environments. It is commonly specified in fabrication shops, industrial maintenance, and OEM equipment assembly contexts.

Key Features

• 1/2-8 Acme thread profile for use in linear motion and lead screw assemblies
• 2G thread fit class provides a standard commercial tolerance for reliable engagement
• Right-hand thread direction for conventional installation
• 1215 and 12L14 free-machining steel construction balances machinability with moderate strength
• 7/8 inches across flats for use with standard hex wrenches and sockets
• Compact height of 31/64 inches suits space-constrained fastening locations

Compatibility

Designed as a standard Acme thread hex nut for use with 1/2-8 Acme threaded rods, lead screws, or mating fasteners in industrial and mechanical assembly applications.

Installation Notes

Installation is typically performed by maintenance mechanics, millwrights, or machine technicians using standard hex wrenches or sockets sized for 7/8-inch flats. Ensure the mating lead screw or threaded rod is clean, free of burrs, and compatible with the 1/2-8 Acme 2G thread specification before installing. Do not cross-thread or force the nut onto the mating component. Torque to the level appropriate for the application load and steel grade per the applicable mechanical assembly standard.