Value Collection 354-0516-01 Flat Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION 354-0516-01 is a 5/16-18 x 1 inch fully threaded flat socket cap screw designed for flush or countersunk fastening applications. The 82-degree flat head seats flush with or below the mating surface, eliminating protrusion in finished assemblies. Drive engagement is through a T40 Torx Plus socket, which provides higher torque transfer and reduced cam-out compared to standard hex drives. The fastener is machined from alloy steel and finished with black oxide, offering moderate corrosion resistance and a low-reflectance appearance. Licensed trades, maintenance technicians, and industrial assemblers use this screw in equipment panels, machinery housings, and structural fixtures where a recessed head is required.

This screw is suited for general industrial and mechanical assembly work where UNC thread form and flush-head geometry are specified. Common applications include mounting brackets, enclosure panels, and machine frames in both shop and field environments. The 5/16-18 UNC thread is a widely used coarse-pitch size that threads into standard tapped holes and hex nuts across a broad range of steel, aluminum, and cast components. It is sold in minimum order quantities of 100 pieces, making it appropriate for production runs, maintenance kits, and shop stock replenishment.

Key Features

• 82-degree flat head seats flush in standard countersunk holes, eliminating head protrusion
• T40 Torx Plus drive delivers higher torque capacity and reduced cam-out versus hex socket drives
• Fully threaded along the 1 inch overall length for maximum thread engagement in thin and full-depth applications
• Alloy steel construction provides high tensile and shear strength for demanding fastening loads
• Black oxide finish reduces surface reflectance and provides light corrosion resistance in dry and mildly humid environments
• Conforms to ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style replacement or production fastener for any application requiring a 5/16-18 UNC fully threaded flat socket cap screw with an 82-degree head angle per ASME/ANSI B18.3 and ASTM F835.

Installation Notes

Install using a T40 Torx Plus bit or driver rated for the torque requirements of the assembly. Countersink the mating hole to an 82-degree included angle to achieve proper head seating. Verify thread engagement depth meets the minimum specified by the applicable fastener standard before final torque. Always follow the torque specifications provided by the equipment manufacturer or applicable industry standard for 5/16-18 alloy steel fasteners.