Value Collection 36828 Flat Socket Cap Screw 5/16-18 X 3 in 25pk

Product Description

The VALUE COLLECTION 36828 is a flat socket cap screw designed for flush or countersunk fastening applications in metal assemblies. It features an 82-degree flat head driven by a 3/16-inch hex socket, keeping the fastener head at or below the workpiece surface. The screw is partially threaded with a 5/16-18 UNC thread size and an overall length of 3 inches. Manufactured from alloy steel with a black oxide finish, it provides corrosion resistance and reduces light reflection in finished assemblies. Licensed tradespeople and fabricators use this fastener where a clean, low-profile mechanical connection is required.

This flat socket cap screw suits general industrial, mechanical, and structural applications where a countersunk fastening profile is needed. The 5/16-18 UNC thread pattern is a standard coarse-thread specification widely used in fabrication, machine assembly, and equipment mounting. The black oxide alloy steel construction handles moderate-stress applications where surface finish and flush seating matter. This item is sold in a package quantity of 25, with a minimum order quantity of 1 package.

Key Features

• 82-degree flat head for flush countersunk installation
• 3/16-inch hex socket drive for precise torque application
• 5/16-18 UNC coarse thread, partially threaded shank
• Alloy steel construction for mechanical strength
• Black oxide finish for corrosion resistance and low reflectivity
• Meets ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard 5/16-18 UNC flat socket cap screw suitable for use in any application requiring an 82-degree countersunk hex socket fastener per ASME/ANSI B18.3 specifications.

Installation Notes

Installation requires a properly sized countersink at 82 degrees to achieve a flush seating surface. Use a calibrated 3/16-inch hex key or socket bit driver to drive the fastener. Avoid over-torquing, which can strip the socket or damage the countersink seat. Follow applicable mechanical assembly standards for torque specifications based on joint material and application load.