Value Collection A997363 Shoulder Screw 5/16 in 18-8 Ss

Product Description

The VALUE COLLECTION A997363 is an 18-8 stainless steel shoulder screw designed for precision fastening applications where a smooth, accurately sized bearing surface is required. The shoulder measures 0.3125 inches (5/16 inch) in diameter and 2-3/4 inches in length, providing a reliable pivot or alignment post for moving components, linkages, and jigs. The 1/4-20 UNC threaded shank locks the assembly securely into a tapped hole. Drive engagement is via a 5/32-inch hex socket, allowing installation with a standard hex key or Allen driver. This fastener is supplied uncoated, preserving the natural corrosion resistance of the 18-8 stainless alloy. Sold in a package of 5.

Shoulder screws of this type are widely used in manufacturing fixtures, machine guards, pneumatic linkages, cam and follower assemblies, and general mechanical hardware applications. The smooth shoulder acts as a precision shaft or spacer, making it suitable wherever a screw must also serve as a pivot point or guide. This fastener is commonly installed by millwrights, maintenance technicians, and mechanical assemblers working on light to medium industrial equipment. It is equally appropriate for tool-and-die, robotics, and precision fabrication environments.

Key Features

• 5/16-inch shoulder diameter (0.3125 inches) for precise bore fit and smooth rotation
• 2-3/4-inch shoulder length provides extended bearing surface for longer pivot spans
• 1/4-20 UNC thread for secure engagement in standard tapped holes
• 18-8 stainless steel construction resists corrosion in wet or mildly chemical environments
• 5/32-inch hex socket drive for installation with standard Allen keys or hex drivers
• Uncoated finish maintains dimensional accuracy of the shoulder surface

Compatibility

Designed as a standard shoulder screw for any application requiring a 5/16-inch diameter shoulder, 2-3/4-inch shoulder length, and 1/4-20 UNC threaded shank with a hex socket drive.

Installation Notes

Installation is performed with a 5/32-inch hex key or ball-end driver. Ensure the receiving bore is sized to match the 0.3125-inch shoulder diameter for proper fit and function. Thread the 1/4-20 shank into a clean, properly tapped hole and tighten until the shoulder seats against the workpiece surface. Avoid over-torquing, which can deform the shoulder or strip the threaded shank in softer base materials.