Value Collection R63064441 Flat Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION R63064441 is a flat socket cap screw designed for fastening applications where a flush or countersunk head profile is required. Sized at 5/16-18 x 1/2 inches overall length, it features an 82-degree flat head and a 3/8-inch hex socket drive. Constructed from 18-8 stainless steel, it offers solid corrosion resistance in general-purpose environments. This fastener is installed using a hex key (Allen wrench) and is suited for mechanical assemblies, equipment enclosures, and structural connections where the fastener head must sit flush with or below the surface of the material being fastened.

This screw is used in a wide range of light industrial, mechanical, and trade service applications. The 5/16-18 UNC thread pattern is a common standard inch-series size found in HVAC equipment frames, pump housings, electrical enclosures, and general fabrication work. The flush-seating flat head makes it especially useful in assemblies with limited clearance above the fastener or where a clean surface finish is needed. Installers in plumbing, HVAC, and electrical trades encounter this fastener size regularly during equipment assembly and repair work.

Key Features

• 82-degree flat head for flush or countersunk installation
• 3/8-inch hex socket drive for reliable torque transfer with a standard Allen key
• 5/16-18 UNC thread standard for broad compatibility with inch-series hardware
• 18-8 stainless steel construction for corrosion resistance in general-purpose service
• 1/2-inch overall length suits shallow countersink applications

Compatibility

Designed as a standard inch-series flat socket cap screw compatible with any application calling for a 5/16-18 UNC threaded fastener with an 82-degree countersunk flat head and 3/8-inch hex socket drive.

Installation Notes

Install using a 3/8-inch hex key or Allen wrench; ensure the mating material has a properly machined 82-degree countersink to achieve full head seating. Power down or de-energize any equipment before replacing fasteners on live assemblies. Do not overtighten stainless steel fasteners, as galling can occur — apply an anti-seize compound when joining stainless to stainless threads. Follow applicable equipment manufacturer torque guidance where specified.