Value Collection 063103PS Flat Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION 063103PS is a flat socket cap screw designed for fastening applications that require a flush or countersunk head profile. It features an 82-degree flat head and a 3/16-inch hex socket drive, and is fully threaded along its 1-1/2-inch overall length. The screw is manufactured from 316 stainless steel, providing strong resistance to corrosion in wet, marine, and chemical-exposure environments. This fastener suits plumbers, pipefitters, HVAC technicians, and general mechanical tradespeople working on assemblies where a recessed head is required and corrosion resistance is a priority.

This screw is sized at 5/16-18 UNC (Unified National Coarse) thread and measures 1-1/2 inches in overall length. It is well suited for use in stainless steel or aluminum fabrications, equipment panels, and enclosures found in commercial and residential mechanical systems. The fully threaded shank provides consistent thread engagement throughout the full fastener length, which is useful in thin-material applications or where maximum thread contact is needed.

Key Features

• 82-degree flat head profile allows flush or countersunk installation
• 3/16-inch hex socket drive for use with standard Allen or hex key sets
• Fully threaded along entire 1-1/2-inch length for maximum thread engagement
• 316 stainless steel construction resists corrosion in wet, marine, and chemical environments
• 5/16-18 UNC thread standard ensures broad compatibility with standard tapped holes

Compatibility

Designed as a standard inch-series UNC flat socket cap screw suitable for tapped holes and assemblies requiring a 5/16-18 thread and a countersunk 82-degree seating angle.

Installation Notes

Installation is performed using a 3/16-inch hex key or Allen wrench; ensure the mating hole is properly countersunk to 82 degrees before driving the screw. De-energize or depressurize any system before accessing fastened components. Avoid over-torquing stainless steel fasteners, as galling can occur — apply an appropriate anti-seize compound when working with stainless-to-stainless thread engagement. Follow applicable mechanical and structural codes for the installation environment.