Value Collection 711122PS Shoulder Screw 5/8 in 4140 Steel

Product Description

The VALUE COLLECTION 711122PS is a hex socket shoulder screw machined from 4140 alloy steel and left uncoated for a clean, dimensionally consistent finish. The shoulder measures 5/8 inch in diameter and 1 inch in length, providing a precision bearing surface for rotating or sliding components. The 1/2-13 UNC threaded section locks the fastener securely into tapped holes. With a 7/8 inch head diameter and a 3/8 inch head height, this screw is driven with a 5/16 inch hex socket key. It meets ANSI B18.3 and ASTM A574 standards, making it suitable for demanding mechanical assemblies where dimensional accuracy and shear strength matter.

This shoulder screw is used in mechanical, industrial, and manufacturing applications where a hardened, precise shoulder is needed to act as a shaft, pivot, or guide pin. Typical installations include jigs, fixtures, linkages, cams, and die sets. The 4140 alloy steel construction handles high shear loads and cyclic stress. It is appropriate for both light production machinery and precision tooling setups where standard fasteners would not provide adequate shoulder tolerances.

Key Features

• 5/8 inch shoulder diameter with a 1 inch shoulder length for precise bearing and pivot applications
• 4140 alloy steel construction for high tensile strength and shear resistance
• 1/2-13 UNC thread for secure engagement in standard tapped holes
• 5/16 inch hex socket drive for clean, high-torque installation in confined spaces
• 7/8 inch head diameter and 3/8 inch head height provide positive seating against mating surfaces
• Uncoated finish meets ANSI B18.3, ASME/ANSI B18.3, and ASTM A574 standards

Compatibility

Designed as an OEM-style replacement or direct-fit fastener for mechanical assemblies requiring a 5/8 inch shoulder diameter, 1 inch shoulder length, and 1/2-13 UNC thread on a hex socket shoulder screw.

Installation Notes

Installation is typically performed by machinists, maintenance technicians, or mechanical assemblers using a 5/16 inch hex key or socket driver. Ensure the tapped receiving hole meets 1/2-13 UNC tolerances before installation. Clean mating surfaces and verify shoulder fit before applying torque. Do not overtighten; consult applicable engineering specifications for torque requirements based on joint design and load conditions.