Value Collection 211165P Flat Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION 211165P is a flat socket cap screw designed for flush or countersunk fastening applications in metal assemblies, machinery, and structural components. It features a 3/16-inch hex socket drive and an 82-degree flat head profile that seats flush with or below the work surface when installed in a properly chamfered hole. The screw is fully threaded with a 5/16-18 UNC thread pattern over its 1-1/4-inch overall length. Manufactured from alloy steel with a black oxide finish, it offers solid mechanical strength and moderate corrosion resistance in protected or lightly exposed environments. Licensed machinists, millwrights, and general maintenance technicians are the typical installers.

This fastener is suited for use in machine frames, fixtures, jigs, tooling plates, and equipment panels where a low-profile or flush head is required. The 5/16-18 UNC thread is a standard coarse-thread size compatible with a wide range of tapped holes in steel, aluminum, and iron components. The black oxide finish makes it a common choice in industrial and manufacturing environments where a non-reflective surface is preferred. It conforms to ASME/ANSI B18.3 and ASTM F835 fastener standards.

Key Features

• 82-degree flat head profile for flush or countersunk installation
• 3/16-inch hex socket drive accepts standard Allen keys and hex bit drivers
• Fully threaded 5/16-18 UNC over 1-1/4-inch overall length
• Alloy steel construction for high tensile and shear strength
• Black oxide finish provides a non-reflective surface and mild corrosion resistance
• Meets ASME/ANSI B18.3 and ASTM F835 standards

Compatibility

Designed as a standard replacement or stocking fastener for any application requiring a 5/16-18 UNC fully threaded flat socket cap screw with an 82-degree head and 3/16-inch hex drive in alloy steel with black oxide finish.

Installation Notes

Installation requires a 3/16-inch hex key or Allen driver; use of a torque wrench calibrated for the specific joint material and application is standard practice. Ensure the mating hole is properly countersunk to 82 degrees to achieve full head seating. Threads should be inspected for damage and the hole cleared of debris before assembly. Always follow applicable machine safety and lockout/tagout procedures before servicing equipment where these fasteners are used.