Value Collection 63872 Flat Socket Cap Screw 5/16-18x2 Ss

Product Description

The VALUE COLLECTION 63872 is a flat socket cap screw designed for flush or countersunk fastening applications where a low-profile head is required. It features an 82-degree flat head geometry and a 3/8-inch hex socket drive, accepting a standard Allen-type key. The screw is manufactured from 18-8 stainless steel, which provides corrosion resistance suitable for general industrial, mechanical, and maintenance applications. The thread specification is 5/16-18 UNC — a coarse unified inch thread — with an overall length of 2 inches. This fastener is installed by maintenance technicians, millwrights, and assembly professionals across light fabrication, equipment repair, and structural panel work.

This flat socket cap screw is used wherever a fastener must sit flush with or below the material surface. The 82-degree countersink angle is the standard for inch-series flat head fasteners and mates with standard countersunk holes. It is appropriate for metal-to-metal assemblies, machine guards, enclosures, brackets, and similar applications requiring a smooth exterior surface. The 18-8 stainless steel construction makes it suitable for mildly corrosive or washdown environments. Sold individually with a minimum order quantity of 50 pieces.

Key Features

• 82-degree flat head profile for flush countersunk installations
• 3/8-inch hex socket drive for standard Allen key or hex bit
• 18-8 stainless steel construction for corrosion resistance
• 5/16-18 UNC coarse thread for broad material compatibility
• 2-inch overall length suitable for moderate-depth fastening applications
• Inch-system dimensions conforming to UNC thread standards

Compatibility

Designed as a standard inch-series flat socket cap screw compatible with countersunk holes machined to the 82-degree included angle standard, accepting 5/16-18 UNC threaded holes.

Installation Notes

Installation requires a 3/8-inch hex key or Allen-type bit driver. Ensure the mating hole is countersunk to 82 degrees before driving the fastener to achieve proper flush seating. Torque fastener to values appropriate for 5/16-18 stainless steel hardware per applicable mechanical or structural specifications — do not over-torque, as 18-8 stainless steel is susceptible to galling. Apply an anti-galling lubricant such as a nickel-based compound when torquing stainless fasteners to reduce the risk of thread seizure.