Value Collection R57600612 Shoulder Screw 5/8 in 18-8 Ss

Product Description

The VALUE COLLECTION R57600612 is a shoulder screw machined from 18-8 stainless steel with an uncoated finish. The shoulder measures 5/8 inches in diameter and 2-1/2 inches in length, providing a precise bearing surface for rotating or sliding components such as linkages, pivot points, and jig fixtures. The 1/2-13 UNC threaded section secures the fastener into a tapped bore, while the 7/8-inch diameter hex socket head — driven with a 5/16-inch hex key — allows controlled installation torque in confined spaces. This fastener is suited for mechanical assemblies in industrial, maintenance, and manufacturing environments where dimensional accuracy and corrosion resistance are required.

Shoulder screws of this type are used wherever a fixed-diameter shaft must pass through a bushing, bearing, or clearance hole to create a guided pivot or slide. Common applications include fixture plates, die sets, stripper plate assemblies, and machine guards. The 18-8 stainless steel construction makes this screw a practical choice in environments exposed to moisture, mild chemicals, or repeated cleaning cycles. Machinists, millwrights, and maintenance technicians are the primary installers in production and fabrication settings.

Key Features

• 5/8-inch shoulder diameter with 2-1/2-inch shoulder length for precise shaft and pivot applications
• 18-8 stainless steel construction provides corrosion resistance in wet or chemically active environments
• 1/2-13 UNC thread for secure engagement in standard tapped steel or stainless bores
• Hex socket drive accepts a 5/16-inch hex key for access in tight clearances
• Uncoated finish maintains dimensional consistency without coating buildup on the shoulder surface
• 7/8-inch head diameter provides a positive seating surface against the mating part

Compatibility

Designed as a standard shoulder screw for use in mechanical assemblies, fixture plates, die sets, and pivot applications requiring a 5/8-inch shoulder diameter, 2-1/2-inch shoulder length, and 1/2-13 UNC thread.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a 5/16-inch hex key or T-handle driver. De-energize and lock out any machine or assembly before installing or removing fasteners in powered equipment. The tapped receiving bore should be clean and free of debris before threading in the screw. Do not use an impact driver on socket head cap screws or shoulder screws, as this risks galling stainless steel threads.