Value Collection 711182BR Shoulder Screw 1 in 4140 Alloy Steel

Product Description

The VALUE COLLECTION 711182BR is a heavy-duty shoulder screw machined from 4140 alloy steel, designed for precision pivot, hinge, and linkage applications in industrial and mechanical assemblies. The screw features a 1-inch shoulder diameter and a 3-1/2-inch shoulder length, providing a smooth, accurately toleranced bearing surface for rotating or sliding components. Drive engagement is via a 1/2-inch hex socket, requiring a standard Allen wrench or hex bit. The uncoated finish is suitable for environments where a secondary coating or plating will be applied. Licensed machinists, millwrights, and maintenance technicians are the typical installers.

This shoulder screw is used in applications that require a tight-tolerance cylindrical shank to serve as a shaft, pivot pin, or guide for bearings, bushings, or other mating components. Common install scenarios include machine frames, fixture tooling, conveyor linkages, and robotic arm assemblies. The 3/4-10 UNC threaded section anchors the screw into a tapped hole, while the shoulder portion protrudes to carry load. The 5/8-inch head height and 1-5/16-inch head diameter provide a stable seating surface against the workpiece.

Key Features

• 1-inch shoulder diameter with 3-1/2-inch shoulder length for extended bearing surface
• 4140 alloy steel construction for high tensile strength and wear resistance
• 1/2-inch hex socket drive for positive torque engagement
• 3/4-10 UNC thread for broad compatibility with standard tapped holes
• Uncoated finish — ready for secondary plating, coating, or use as-is in dry environments
• Meets ANSI B18.3, ASME/ANSI B18.3, and ASTM A574 standards

Compatibility

Designed as an OEM-style and aftermarket replacement shoulder screw for industrial machinery, fixtures, and mechanical assemblies requiring a 1-inch diameter shoulder, 3/4-10 UNC threaded engagement, and a 1/2-inch hex socket drive.

Installation Notes

Installation is performed by machinists, millwrights, or qualified maintenance technicians. Ensure the tapped receiving hole matches the 3/4-10 UNC thread specification before installation. Use an appropriate 1/2-inch hex key or socket bit driver and apply thread-locking compound or specified torque to manufacturer assembly drawings — do not rely on feel alone for critical load-bearing joints. De-energize and lock out all machinery before servicing any assembly that includes this fastener.