Value Collection R57600560 Shoulder Screw 3/8 in 18-8 Ss

Product Description

The VALUE COLLECTION R57600560 is an 18-8 stainless steel shoulder screw designed for precision fastening applications where a tight-tolerance cylindrical shoulder is required. The screw features a 3/8 inch shoulder diameter and a 4-1/2 inch shoulder length, providing an extended bearing surface for pivoting, guiding, or spacing components. Drive engagement is through a 3/16 inch hex socket. The uncoated 18-8 stainless steel construction offers good corrosion resistance without plating buildup. This type of fastener is typically installed by machinists, maintenance technicians, and mechanical assembly professionals in industrial, HVAC, or equipment manufacturing environments.

Shoulder screws of this configuration are used in applications where a smooth, precision-ground shaft section is needed to act as a pivot point, guide pin, or sliding journal. Common installations include linkage assemblies, fixture tooling, sheet metal fabrication jigs, conveyor components, and mechanical sub-assemblies found in commercial HVAC equipment and industrial machinery. The 5/16-18 UNC threaded end secures the screw into a tapped hole while the shoulder carries the load and maintains precise alignment between mating parts.

Key Features

• 3/8 inch shoulder diameter with 4-1/2 inch shoulder length for extended bearing and pivot surface
• 5/16-18 UNC thread for secure engagement in standard tapped holes
• 18-8 stainless steel construction provides corrosion resistance in wet or mildly caustic environments
• 3/16 inch hex socket drive for precise torque application with standard Allen wrenches or hex drivers
• Uncoated finish eliminates plating thickness variation for tight dimensional tolerances
• 9/16 inch head diameter and 1/4 inch head height for low-profile seating

Compatibility

Designed as a standard shoulder screw for use in any application requiring a 3/8 inch shoulder diameter, 4-1/2 inch shoulder length, and 5/16-18 UNC threaded end in 18-8 stainless steel.

Installation Notes

Install using a 3/16 inch hex key or hex socket driver. Ensure the mating tapped hole is cut to 5/16-18 UNC specification and is clean and free of debris before threading. Power down or de-energize any equipment before replacing or installing fasteners in live assemblies. Do not exceed the torque capacity of the threaded section by using oversized tools or impact drivers on small-diameter fasteners.