Quick Fastener Winged 5/16 x.400 Steel

The Quick Fastener Winged 5/16 x.400 Steel set is a precision-engineered fastening solution purpose-built for applications where speed and reliability are non-negotiable. Available in a set of 10, these winged fasteners are commonly used in engine assembly, machinery housings, and equipment maintenance where quick hand-tightening without tools saves critical time in field operations. Whether you're conducting equipment maintenance, assembling protective gear components, or performing emergency repairs in tactical environments, this fastener set eliminates the need for wrenches or specialized tools.

Manufactured from steel and finished with zinc plating, the Quick Fastener Winged 5/16 x.400 Steel resists corrosion and oxidation in harsh field conditions—a critical attribute for gear stored in vehicles, outdoor caches, or humid environments. The wing head design provides superior leverage for hand-tightening, allowing operators to achieve secure fastening without losing dexterity or requiring additional tools in gloved situations. The 5/16-inch diameter with a 0.400-inch body length offers optimal grip and penetration for medium-duty applications, while the zinc plate finish extends service life and maintains a low-profile appearance consistent with tactical equipment standards.

Law enforcement technicians, military armories, and field maintenance teams benefit most from keeping this fastener set on hand for impromptu repairs and equipment assembly tasks. The ten-piece configuration ensures adequate supply for multiple operations or replacement of damaged fasteners without additional reordering. Installation is straightforward—simply align the fastener with the threaded hole and turn the winged head clockwise until snug; the design accommodates standard 5/16-inch threaded holes across most military and tactical equipment platforms without modification or adapters.