Value Collection R57600528 Shoulder Screw 5/16 in 1/4-20

Product Description

The VALUE COLLECTION R57600528 is an 18-8 stainless steel shoulder screw designed for precision fastening applications where a smooth cylindrical shoulder is required between mating components. The shoulder measures 5/16 inches in diameter and 5/16 inches in length, providing a tight, accurate pivot or bearing surface. The threaded section is 1/4-20 UNC. Drive engagement is via a 5/32-inch hex socket. The uncoated 18-8 stainless steel construction offers good corrosion resistance and is suitable for general industrial, mechanical, and light structural assemblies. Machinists, millwrights, and maintenance technicians are the primary installers of this fastener type.

This shoulder screw is used in applications requiring a precisely controlled cylindrical surface to act as a shaft, pivot pin, or guide for bushings, bearings, links, or rotating components. Typical install scenarios include jigs and fixtures, linkage assemblies, and equipment panels in both light industrial and commercial settings. The uncoated finish makes it suitable for applications where post-installation coating or a bare metal surface is acceptable. Minimum order quantity is 5 pieces per order.

Key Features

• 5/16-inch shoulder diameter and 5/16-inch shoulder length for precise fit in standard bushing or bearing bores
• 1/4-20 UNC threaded section for secure clamping into tapped holes
• 5/32-inch hex socket drive for torquing in confined spaces with standard Allen keys or hex bit drivers
• 18-8 stainless steel construction provides corrosion resistance in moderate-exposure environments
• Uncoated finish — no coating buildup to affect shoulder tolerances
• 7/16-inch head diameter and 7/32-inch head height for low-profile seating

Compatibility

Designed as a standard shoulder screw for use in any application requiring a 5/16-inch shoulder diameter with a 1/4-20 UNC threaded shank and hex socket drive.

Installation Notes

Install using a 5/32-inch hex key or hex socket bit. Ensure the mating tapped hole is clean and correctly sized for 1/4-20 UNC thread engagement before driving. Do not over-torque, as stainless steel fasteners are susceptible to galling — apply an appropriate anti-seize compound if repeated removal is anticipated. Always verify shoulder fit within the bore or bushing before final assembly.