18-8 Stainless Steel Socket Cap Screw, Plain Finish, Internal Hex Drive, Meets ASME B18.3/ASTM F837, 4-1/2" Length, Partially Threaded, 5/16"-18 UNC Threads, Imported (Pack of 10)
Socket cap screws are threaded fasteners that have a cap head with an internal socket drive for installing in areas with limited side clearance. These screws are available with a variety of head shapes, which determine how the screw interacts with the mating surface, and drive styles, which determine the type of tool required to install the screw.