Value Collection 221076PR Shoulder Screw 3/8 in Alloy Steel

Product Description

The VALUE COLLECTION 221076PR is an alloy steel shoulder screw with a 0.375 inch shoulder diameter and a 2-1/4 inch shoulder length. It features a 5/16-18 UNC threaded end and a 3/16 inch hex socket drive for installation with a hex key. The head stands 0.25 inches tall with a head diameter ranging from 0.543 to 0.562 inches. Manufactured to Grade 8 alloy steel with an uncoated finish, this shoulder screw is suited for precision fastening applications in machinery, jigs, fixtures, and pivot assemblies. It is typically installed by machinists, maintenance mechanics, and industrial assembly technicians.

This shoulder screw is used where a hardened, precise-diameter shoulder is needed to act as a bearing surface, pivot point, or guide pin. Common applications include die sets, tooling fixtures, linkage assemblies, and mechanical stops. The uncoated Grade 8 alloy steel construction provides high tensile strength for demanding industrial and mechanical service environments. Minimum order quantity is 25 pieces; individual package quantity is 1.

Key Features

• Shoulder diameter of 0.375 inches for precise fit in mating bores
• 2-1/4 inch shoulder length suits deeper fixture and linkage applications
• Grade 8 alloy steel construction provides high tensile strength
• 3/16 inch hex socket drive for standard hex key installation
• 5/16-18 UNC thread for broad compatibility with standard tapped holes
• Meets ANSI B18.3, ASME/ANSI B18.3, and ASTM A574 standards

Compatibility

Designed as an OEM-style replacement or direct-use shoulder screw for machinery, tooling fixtures, and mechanical assemblies requiring a 0.375 inch shoulder diameter and 5/16-18 UNC threaded end.

Installation Notes

Install using a 3/16 inch hex key. Ensure the mating bore diameter matches the 0.375 inch shoulder diameter for proper fit and function. De-energize and lock out all equipment before servicing any assembly containing this fastener. Follow applicable facility and industry torque specifications for Grade 8 alloy steel fasteners of this thread size.