Value Collection R63004642 Shoulder Screw 18-8 Ss Hex Socket

Product Description

The VALUE COLLECTION R63004642 is a shoulder screw manufactured from 18-8 stainless steel, designed for precision fastening applications that require a close-tolerance cylindrical shoulder as a bearing, pivot, or spacer surface. The shoulder measures 0.5 inches in diameter and 1.75 inches in length, with a 3/8-16 UNC threaded end and a 1/4 inch hex socket drive. The 18-8 stainless steel construction provides corrosion resistance suitable for wet, chemical-exposure, or food-adjacent environments. This type of fastener is typically installed by machinists, maintenance technicians, and assembly professionals working with mechanical linkages, jigs, and fixtures.

Shoulder screws of this configuration are used wherever a fixed-diameter shaft is needed to guide moving components, serve as a pivot point, or act as a positive stop. Common applications include machine guarding assemblies, pneumatic and hydraulic fixture work, linear slide guides, spring retention, and general industrial equipment. The 3/8-16 UNC thread is a standard coarse-thread size widely used in ferrous and non-ferrous assemblies across industrial and commercial equipment.

Key Features

• 0.5 inch shoulder diameter provides a precise bearing and pivot surface
• 1.75 inch shoulder length accommodates standard fixture and linkage stack heights
• 3/8-16 UNC thread for compatibility with standard tapped holes
• 18-8 stainless steel construction resists corrosion in wet and mildly acidic environments
• 1/4 inch hex socket drive for installation with standard hex keys or socket drivers

Compatibility

Designed as a standard UNC shoulder screw for use in industrial fixtures, mechanical linkages, and equipment assemblies requiring a 0.5 inch shoulder diameter and 3/8-16 UNC threaded engagement.

Installation Notes

Install using a 1/4 inch hex key or appropriately sized hex socket driver. Ensure the receiving tapped hole meets the 3/8-16 UNC thread specification and is clean and free of debris before threading. Avoid over-torquing, as stainless steel fasteners are susceptible to galling — apply an anti-galling lubricant or thread compound where appropriate. Power down any equipment and relieve system pressure before replacing shoulder screws in live assemblies.