Value Collection 225160BR Shoulder Screw 5/8 in 4140 Alloy Steel

Product Description

The VALUE COLLECTION 225160BR is a hex socket shoulder screw machined from 4140 alloy steel, designed for precision fastening applications where a hardened, close-tolerance shoulder is required. The shoulder measures 5/8 inch in diameter and 1-1/4 inches in length, providing a smooth bearing surface for pivoting or sliding components. The threaded portion is 1/2-13 UNC. Drive engagement is via a 5/16 inch hex socket. This type of fastener is commonly installed by machinists, millwrights, and maintenance technicians in industrial and mechanical assemblies.

Shoulder screws like the 225160BR are used in jigs, fixtures, dies, cams, linkages, and conveyor components where a precision shaft or pivot point is needed. The ground shoulder serves as a bearing surface or locating feature, making it suitable for both light and moderate-load rotating or sliding contact. Appropriate for industrial machinery, tooling, and fabrication environments requiring dimensionally consistent fasteners that meet recognized standards.

Key Features

• 4140 alloy steel construction for high tensile strength and wear resistance
• 5/8 inch shoulder diameter with a 1-1/4 inch shoulder length for precise location and bearing surface
• 1/2-13 UNC threaded end for secure clamping into tapped holes
• 5/16 inch hex socket drive for torque application with standard Allen keys or hex drivers
• 7/8 inch head diameter and 3/8 inch head height for consistent seating
• Meets ASME/ANSI B18.3, ASTM F835, and IFI 124 standards

Compatibility

Designed as an OEM-style replacement or direct-install shoulder screw for industrial fixtures, tooling, and mechanical assemblies requiring a 5/8 inch shoulder diameter with 1/2-13 UNC thread engagement.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a 5/16 inch hex key or socket driver. Ensure the receiving tapped hole is clean and properly sized for 1/2-13 UNC thread engagement before installation. Do not use impact tools on hex socket shoulder screws, as this can damage the drive recess or distort the shoulder. Follow applicable facility or equipment torque guidelines for the fastener size and material grade.