5/16 inch UNC Low Socket Head Cap Screws in A2 Stainless Steel

UNC low socket cap screws have a low head height and shallower hex drive. These are designed to be used where there is restricted clearance for the head height of the screws. The lower head height means that they are unable to withstand the same tightening torque as a full height socket head cap screw. This range is generally manufactured with a partial thread beyond a certain length and nominal diameter combination, but occasionally some stock may include a fully threaded shank. The socket head generally has a flat chamfered top surface with smooth or knurled cylindrical sides and a flat bearing surface.