Value Collection R57600550 Shoulder Screw 3/8 in 18-8 Ss

Product Description

The VALUE COLLECTION R57600550 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 3 inches in length, providing a precise bearing surface for rotating or sliding components. The 5/16-18 UNC threaded section secures the fastener into tapped holes, while the 9/16 inch diameter head seats flush against mating surfaces. The hex socket drive accepts a 3/16 inch hex key for installation in confined spaces. This fastener is used by machinists, maintenance technicians, and industrial assembly professionals across a wide range of mechanical and structural applications.

Shoulder screws of this type are commonly used in jigs, fixtures, dies, linkages, and pivot assemblies where a hardened or precision shoulder is needed to guide, locate, or act as a shaft for a bushing or bearing. The 3 inch shoulder length makes this screw suitable for thicker assemblies or stacked component configurations. The 18-8 stainless steel construction provides corrosion resistance in washdown, outdoor, or moderately corrosive environments. Maintenance, tooling, and fabrication professionals will find this fastener applicable across light industrial, food-service-adjacent, and general mechanical settings.

Key Features

• 3/8 inch shoulder diameter provides a precise locating and bearing surface
• 3 inch shoulder length accommodates thicker assemblies and stacked components
• 18-8 stainless steel construction offers corrosion resistance without additional coating
• 5/16-18 UNC thread standard ensures broad compatibility with standard tapped holes
• 3/16 inch hex socket drive allows installation with a standard hex key in tight spaces
• Uncoated finish maintains dimensional accuracy at the shoulder

Compatibility

Designed as a standard shoulder screw for use in jigs, fixtures, pivot assemblies, and mechanical linkages requiring a 3/8 inch shoulder diameter with a 5/16-18 UNC threaded end.

Installation Notes

Install using a 3/16 inch hex key. Ensure the tapped hole thread size matches 5/16-18 UNC before installation. Do not overtighten, as excess torque can distort the shoulder or damage the mating component. Always verify that the shoulder length is appropriate for the assembly stack height to ensure proper seating of the head.