Keystone Threaded Products UM012AG1A001850 Hex Nut

Product Description

The KEYSTONE THREADED PRODUCTS UM012AG1A001850 is a right-hand threaded steel hex nut designed for Acme thread applications. It carries a 3/4-6 Acme thread size with a 2G fit class, providing the moderate tolerance and clearance typical of power transmission and linear motion assemblies. The nut measures 1.25 inches across flats and stands 47/64 inch in height, weighing approximately 0.2 pounds. It is suited for industrial, mechanical, and structural applications where an Acme thread form is specified. Installation requires a standard hex wrench or open-end wrench sized to the 1-1/4 inch flat dimension.

This hex nut is used in machinery, tooling fixtures, lead screw assemblies, and fabrication applications where Acme thread forms are standard. The right-hand thread direction follows conventional fastening practice. Its steel construction provides adequate strength for general-purpose mechanical assemblies in both light industrial and commercial settings. Machinists, millwrights, and maintenance technicians are the primary installers of this type of fastener.

Key Features

• 3/4-6 Acme thread size with right-hand thread direction
• 2G thread fit class for standard power transmission clearance
• Steel construction for general-purpose mechanical strength
• 1.25 inches (1-1/4 inches) width across flats for standard hex tooling
• 47/64 inch height for compact axial profile
• Does not meet military specifications - suited for commercial and industrial use

Compatibility

Designed for use with 3/4-6 Acme threaded rod or lead screws in right-hand thread orientation with a 2G fit class, typical of general-purpose power transmission and linear motion assemblies.

Installation Notes

This fastener is typically installed by machinists, millwrights, or maintenance technicians working on mechanical assemblies. De-energize and lock out any machinery before servicing or replacing threaded fasteners in power transmission systems. Use a properly sized 1-1/4 inch open-end or box wrench to avoid rounding the flats. Verify thread engagement length and fit class compatibility before final assembly.