Value Collection 711115BR Shoulder Screw 5/8 in 4140 Steel

Product Description

The VALUE COLLECTION 711115BR is a shoulder screw machined from 4140 alloy steel with an uncoated finish. It features a 0.625 inch shoulder diameter and a 0.5 inch shoulder length, making it suited for applications that require a precision bearing or pivot surface. The 1/2-13 UNC threaded shank provides secure fastening, while the 7/8 inch head diameter and 3/8 inch head height accept a 5/16 inch hex socket drive for installation. This type of fastener is installed by machinists, maintenance technicians, and mechanical assemblers across industrial and commercial settings.

Shoulder screws of this configuration are commonly used in jigs, fixtures, linkages, and pivot assemblies where the unthreaded shoulder acts as a shaft or spacer. The 4140 alloy steel construction provides strength suitable for moderate-to-heavy load applications in mechanical assemblies. This screw meets ANSI B18.3 and ASME/ANSI B18.3 dimensional standards as well as ASTM A574 mechanical property requirements, making it a direct fit for applications that specify conforming hardware.

Key Features

• 0.625 inch shoulder diameter provides a precision bearing surface for pivots and sliding fits
• 0.5 inch shoulder length suits compact assembly clearances
• 1/2-13 UNC thread for secure, standard fastening
• 4140 alloy steel construction for high tensile strength under load
• 5/16 inch hex socket drive for positive torque engagement
• Meets ANSI B18.3, ASME/ANSI B18.3, and ASTM A574 standards

Compatibility

Designed as a standard ANSI B18.3 shoulder screw for use in mechanical assemblies, jigs, fixtures, and pivot applications requiring a 5/8 inch shoulder diameter and 1/2-13 UNC thread specification.

Installation Notes

Installation requires a 5/16 inch hex socket or hex key driver. Ensure the mating bore and clearance hole are sized appropriately for the shoulder diameter before installation. De-energize and lock out any machinery before servicing assemblies containing this fastener. Do not use impact drivers on socket head cap screws or shoulder screws unless the application specifically permits it.