Value Collection R57600616 Shoulder Screw 5/8 in 18-8 Ss

Product Description

The VALUE COLLECTION R57600616 is a shoulder screw manufactured from 18-8 stainless steel with an uncoated finish. The shoulder measures 0.625 inches in diameter and 3 inches in length, providing a precise bearing surface for rotating or sliding components such as linkages, pivots, and guide assemblies. The threaded section is 1/2-13 UNC, driven by a 5/16-inch hex socket. The head stands 0.375 inches tall with a 0.875-inch diameter. This fastener is used by maintenance technicians, machinists, and mechanical assembly professionals wherever a controlled clearance fit is required between a fastener and a mating bore.

Shoulder screws of this type are installed in industrial machinery, jigs and fixtures, tooling, and mechanical assemblies that require a smooth, precise shaft for rotation or linear motion. The 18-8 stainless steel construction provides corrosion resistance suitable for moderately wet or chemical-exposed environments. The 3-inch shoulder length accommodates thicker assemblies or stacked components where a standard-length shoulder screw would be insufficient. This screw is sold individually, making it practical for repair and replacement applications as well as prototype work.

Key Features

• 0.625-inch shoulder diameter provides a precision bearing surface for bore-fit applications
• 3-inch shoulder length accommodates thick assemblies and stacked component installations
• 1/2-13 UNC thread standard for compatibility with standard unified coarse-thread hardware
• 18-8 stainless steel construction offers corrosion resistance without a coating
• 5/16-inch hex socket drive allows installation with a standard Allen key or hex bit
• 0.875-inch head diameter distributes clamping load across the mating surface

Compatibility

Designed as a standard shoulder screw for industrial machinery, jigs, fixtures, and mechanical assemblies requiring a 5/8-inch shoulder diameter and 1/2-13 UNC thread engagement.

Installation Notes

Installation is performed by machinists or mechanical maintenance technicians using a 5/16-inch hex key or socket bit. Ensure the mating bore is sized to the shoulder diameter for the intended fit class before installation. Do not over-torque the threaded section, as shoulder screws are designed to clamp at the shoulder, not compress the assembly beyond the shoulder length. De-energize or lock out any machinery before servicing fasteners in moving assemblies per applicable OSHA lockout/tagout procedures.