Value Collection R57600530 Shoulder Screw 5/16 in 18-8 Ss

Product Description

The VALUE COLLECTION R57600530 is a hex socket shoulder screw machined from 18-8 stainless steel with an uncoated finish. The shoulder measures 0.3125 inches in diameter and 2.25 inches in length, providing a precise bearing surface for rotating or sliding components. The 1/4-20 UNC threaded section locks the fastener into a tapped hole while the unthreaded shoulder acts as a shaft, pivot, or guide pin. The head is driven with a 5/32 inch hex socket key. Machinists, maintenance technicians, and mechanical assemblers install this type of fastener in jigs, fixtures, linkages, and equipment assemblies where a controlled-diameter shank is required.

This shoulder screw is suited for light industrial, mechanical, and equipment maintenance applications where corrosion resistance and dimensional accuracy matter. The 18-8 stainless steel construction makes it appropriate for mildly corrosive environments or applications where contact with dissimilar metals or moisture is a concern. Typical uses include pivot points in linkage assemblies, guide pins in fixture plates, and spacer applications in fabricated mechanical structures. This part is sold individually but must be ordered in multiples of 5.

Key Features

• Shoulder diameter of 0.3125 inches provides a precision bearing surface for rotating or sliding components
• Shoulder length of 2.25 inches accommodates deeper assemblies requiring a longer unthreaded shaft
• 18-8 stainless steel construction offers good corrosion resistance in mildly corrosive environments
• 1/4-20 UNC thread engages standard tapped holes common in North American mechanical assemblies
• 5/32 inch hex socket drive allows installation with a standard hex key or socket driver in tight clearances
• Uncoated finish maintains consistent dimensional tolerances without added coating buildup

Compatibility

Designed as a standard 1/4-20 UNC hex socket shoulder screw for use in mechanical assemblies, fixtures, and equipment requiring a 5/16 inch shoulder diameter and 2-1/4 inch shoulder length.

Installation Notes

Installation is typically performed by machinists or mechanical maintenance technicians using a 5/32 inch hex key or socket driver. Ensure the mating tapped hole is clean and properly sized for 1/4-20 UNC thread engagement before installation. De-energize or lock out any equipment before servicing assemblies that contain shoulder screws. Avoid overtightening, which can distort the shoulder and compromise the fit of rotating or sliding components.