Value Collection C32424343 Flat Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION C32424343 is a flat socket cap screw designed for applications requiring a flush or countersunk fastener profile. Sized at 5/16-18 x 1 inch overall length, it uses a Unified National Coarse (UNC) thread standard and features an 82-degree flat head driven by a 3/16-inch hex socket. Manufactured from 316 stainless steel, this fastener offers strong resistance to corrosion and chemical exposure, making it suitable for demanding service environments. Machinists, millwrights, and maintenance technicians use this style of fastener when a low-profile head is required to sit flush with or below the surface of the mating material.

This flat socket cap screw is used across a wide range of industrial, mechanical, and maintenance applications where a countersunk seat is machined or formed into the mating part. Typical installations include equipment panels, brackets, pump housings, and enclosures where fastener heads must not protrude above the surface. The 316 stainless steel construction makes it well suited for wet, marine, chemical, or food-service environments where carbon steel fasteners would corrode. Standard UNC threading ensures compatibility with inch-system tapped holes of the corresponding size.

Key Features

• 82-degree flat head seats flush in standard countersunk holes for a low-profile installation
• 3/16-inch hex socket drive accepts standard Allen or hex key wrenches
• 5/16-18 UNC thread engages inch-standard tapped holes without modification
• 1-inch overall length suits moderate-depth fastening applications
• 316 stainless steel construction provides superior corrosion resistance over 304 grade in chloride and chemical environments

Compatibility

Designed as a standard inch-series flat socket cap screw for use in any application with a countersunk hole and a 5/16-18 UNC tapped hole of appropriate depth.

Installation Notes

Installation is performed with a 3/16-inch hex key or Allen driver; ensure the driver is fully seated before applying torque to avoid rounding the socket. The mating hole should be countersunk to 82 degrees to match the head angle and achieve proper flush seating. Clean threads and verify thread engagement before final tightening. When installing in stainless-to-stainless applications, apply an anti-galling compound to reduce the risk of thread seizure.