Value Collection R57600554 Shoulder Screw 3/8 in 18-8 Ss

Product Description

The VALUE COLLECTION R57600554 is a hex socket shoulder screw machined from 18-8 stainless steel with an uncoated finish. It features a 0.375 inch shoulder diameter and a 3.5 inch shoulder length, making it well suited for applications that require a precise pivot point, spacer function, or guided sliding fit. The threaded portion is 5/16-18 UNC. The head measures 0.5625 inches in diameter and 0.25 inches tall, driven by a 3/16 inch hex socket key. Licensed mechanics, machine builders, and maintenance technicians working on assemblies that demand corrosion resistance and tight dimensional tolerance will find this fastener a direct fit for standard shoulder screw applications.

This shoulder screw is used wherever a hardened, close-tolerance cylindrical shank is needed to act as a shaft, pivot, or guide pin within a mechanical assembly. Typical installations include linkage assemblies, jig fixtures, die sets, and equipment frames in industrial, HVAC, and process environments. The 18-8 stainless steel construction resists corrosion in wet or mildly chemical environments. This item is sold individually but must be ordered in multiples of 5.

Key Features

• Shoulder diameter of 0.375 inches provides a precise cylindrical bearing surface
• 3.5 inch shoulder length suits deeper assemblies and longer travel guides
• 5/16-18 UNC thread engages standard inch-series tapped holes
• 18-8 stainless steel construction offers corrosion resistance without a coating
• 3/16 inch hex socket drive allows installation in confined spaces with an Allen key or hex bit
• Head diameter of 0.5625 inches and head height of 0.25 inches provide a low-profile, positive seat

Compatibility

Designed as a standard inch-series shoulder screw for use in mechanical assemblies, fixtures, and equipment requiring a 3/8 inch shoulder diameter and 5/16-18 UNC threaded engagement.

Installation Notes

Install with a 3/16 inch hex key or hex socket bit. Ensure the receiving tapped hole is clean and the thread depth is sufficient for full engagement of the 5/16-18 UNC thread before driving. Do not use an impact driver at full torque on stainless fasteners, as galling can occur. De-energize or lock out any equipment before servicing assemblies that contain shoulder screws acting as pivot or guide pins.