Value Collection R57600594 Shoulder Screw 5/8 in 18-8 Ss

Product Description

The VALUE COLLECTION R57600594 is an 18-8 stainless steel shoulder screw designed for precision fastening applications where a smooth, controlled pivot or bearing surface is required. The 5/8-inch shoulder diameter and 1/2-inch shoulder length provide a machined bearing surface that locates and guides mating components with close tolerances. The fastening thread is 1/2-13 UNC, and the hex socket drive accepts a 5/16-inch hex key for installation in tight or recessed locations. The uncoated finish retains the natural corrosion resistance of 18-8 stainless steel without added plating. This screw is installed by machinists, maintenance technicians, and mechanical assemblers.

Shoulder screws of this type are commonly used in fixture plates, jigs, die sets, linkages, and pivot assemblies across industrial, manufacturing, and MRO applications. The enlarged shoulder acts as a shaft for bushings, bearings, or links, while the threaded portion locks the assembly in place. The hex socket head allows for flush or recessed mounting where a wrench would be obstructed. This screw ships individually, making it suitable for single-unit replacement or low-volume assembly work.

Key Features

• 18-8 stainless steel construction provides corrosion resistance in wet or moderately chemical environments
• 5/8-inch shoulder diameter with 1/2-inch shoulder length for precise component location and bearing surface
• 1/2-13 UNC thread for secure engagement with standard tapped holes
• 5/16-inch hex socket drive for torque application in confined or recessed spaces
• Uncoated finish preserves dimensional tolerances and base material properties
• 7/8-inch head diameter and 3/8-inch head height for broad load distribution at the seating surface

Compatibility

Designed as a standard shoulder screw for use in fixtures, jigs, linkages, and pivot assemblies that require a 5/8-inch shoulder diameter, 1/2-inch shoulder length, and 1/2-13 UNC threaded engagement.

Installation Notes

Installation is performed by machinists or mechanical technicians using a 5/16-inch hex key. Ensure the mating tapped hole is clean and properly sized for 1/2-13 UNC thread engagement before installation. De-energize and lock out any equipment before replacing shoulder screws in live assemblies. Do not overtighten, as the shoulder must remain free to rotate or support a bushing or bearing if that is its function in the assembly.