Value Collection 711086PS Shoulder Screw 3/8 X 5-1/2 in 5/16-18

Product Description

The VALUE COLLECTION 711086PS is a hex socket shoulder screw machined from 4140 alloy steel with an uncoated finish. The shoulder measures 3/8 inch in diameter and 5-1/2 inches in length, providing a precision-ground bearing surface for rotating or sliding components. The threaded end is 5/16-18 UNC. The head accepts a 3/16 inch hex key drive. This fastener is installed by machinists, tool-and-die technicians, and mechanical assembly professionals where a smooth, accurate shaft is needed to guide movement or locate a mating part.

Shoulder screws of this type are used in jigs, fixtures, dies, and mechanical assemblies where a shaft must act as a pivot, guide, or spacer. The 4140 alloy steel construction provides high tensile strength and wear resistance suited to industrial and manufacturing environments. The uncoated finish is appropriate for applications where additional coatings are not required or where dimensional tolerances must be held tightly. This screw is sold individually with a minimum order quantity of 5 units.

Key Features

• 3/8 inch shoulder diameter with 5-1/2 inch shoulder length for extended bearing surface
• 4140 alloy steel construction for high strength and wear resistance
• 5/16-18 UNC threaded end for secure engagement in standard tapped holes
• 3/16 inch hex socket drive for precise installation torque control
• 9/16 inch head diameter, 1/4 inch head height
• Meets ANSI B18.3, ASME/ANSI B18.3, and ASTM A574 standards

Compatibility

Designed as a standard shoulder screw for use in jigs, fixtures, dies, and mechanical assemblies requiring a 3/8 inch precision shoulder diameter and 5/16-18 UNC thread engagement.

Installation Notes

Installation is performed by qualified machinists or assembly technicians using a 3/16 inch hex key. Ensure the tapped receiving hole is clean and meets 5/16-18 UNC thread specifications before installation. Do not over-torque, as the shoulder must remain free to support rotating or sliding mating components. Verify shoulder fit and clearance in the bore before final assembly.