Value Collection 711131BR Shoulder Screw 4140 Alloy Steel

Product Description

The VALUE COLLECTION 711131BR is a shoulder screw machined from 4140 alloy steel, designed for precision-locating and pivot applications in industrial assemblies. The shoulder measures 0.75 inches in diameter and 0.625 inches in length, providing the ground bearing surface that shoulder screws are selected for. Drive engagement is through a 3/8-inch hex socket. The 5/8-11 UNC threaded section pulls the screw firmly into the tapped hole, leaving the shoulder exposed to serve as a bushing, pivot, or guide pin. The uncoated finish is standard for applications where dimensional consistency is the primary requirement. Installed by machinists, maintenance technicians, and assembly professionals across a wide range of mechanical and industrial applications.

This shoulder screw suits precision mechanical assemblies where a hardened, ground-shoulder fastener is needed to locate components, act as a pivot point, or serve as a sliding guide. Typical installations include jigs and fixtures, cam followers, linkage assemblies, and machine tool components. The 4140 alloy steel construction provides the strength and hardness needed in load-bearing pivot and guide applications. This screw conforms to ANSI B18.3 and ASME/ANSI B18.3 standards, making it a recognized specification-grade fastener for industrial use.

Key Features

• 0.75-inch shoulder diameter provides precise, ground bearing surface for location and pivot use
• 0.625-inch shoulder length sized for shallow-clearance assemblies
• 4140 alloy steel construction for high tensile strength and wear resistance
• 3/8-inch hex socket drive for standard Allen wrench or hex bit installation
• 5/8-11 UNC thread standard ensures compatibility with common tapped holes
• Meets ANSI B18.3, ASME/ANSI B18.3, and ASTM A574 standards

Compatibility

Designed as a specification-grade replacement or new-installation shoulder screw for industrial assemblies, jigs, fixtures, and machinery requiring a 0.75-inch diameter, 0.625-inch shoulder length, 5/8-11 UNC fastener per ANSI B18.3 and ASME/ANSI B18.3 standards.

Installation Notes

Installation requires a 3/8-inch hex key or socket bit driver. The mating tapped hole must be correctly sized for the 5/8-11 UNC thread before installation. Ensure the shoulder bore in the mating component is reamed or drilled to the appropriate clearance fit for the 0.75-inch shoulder diameter. Do not apply thread-locking compounds to the shoulder surface, as this can interfere with the locating or pivot function of the screw.