Value Collection R57600544 Shoulder Screw 3/8 in 18-8 Ss

Product Description

The VALUE COLLECTION R57600544 is a hex socket shoulder screw machined from 18-8 stainless steel with an uncoated finish. The shoulder measures 3/8 inch in diameter and 2-1/4 inches in length, providing a precise bearing or pivot surface for mechanical assemblies. The 5/16-18 UNC threaded section clamps components securely, while the 9/16-inch head diameter and 1/4-inch head height suit standard counterbored socket clearances. A 3/16-inch hex key drives the fastener. This screw is handled by machinists, maintenance technicians, and assembly professionals working in precision mechanical, industrial, or equipment fabrication applications.

Shoulder screws of this type are used wherever a smooth, accurately dimensioned cylindrical surface is needed to guide motion, locate a part, or serve as a pivot or shaft stub. Common applications include jigs and fixtures, linkage assemblies, cam followers, and equipment panels. The 18-8 stainless steel construction resists corrosion, making this fastener suitable for wet environments, food-adjacent equipment, and general industrial service where mild chemical exposure is a factor.

Key Features

• 3/8-inch shoulder diameter with 2-1/4-inch shoulder length for accurate bearing and pivot surfaces
• 5/16-18 UNC thread for secure clamping with standard tapped holes
• 18-8 stainless steel construction provides corrosion resistance without plating or coating
• Uncoated finish maintains tight dimensional tolerances on the shoulder
• Hex socket drive accepts a 3/16-inch hex key for installation in confined spaces
• 9/16-inch head diameter suits standard counterbored clearances

Compatibility

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

Installation Notes

Install using a 3/16-inch hex key. Ensure the mating tapped hole is sized for a 5/16-18 UNC thread and that any counterbore receiving the shoulder is machined to the appropriate diameter and depth to allow full shoulder engagement. De-energize and lock out any equipment before servicing fasteners on moving assemblies. Do not use an impact driver on socket-head shoulder screws, as overtorque can damage the shoulder fit or the threaded section.