Socket Head Cap Screw, System of Measurement Inch, Cylindrical Flanged, Basic Material Stainless Steel, Material Grade 18-8, 5/16 In.-18, Length 1 1/2 in, Fastener Finish Plain, Fastener Thread Type UNC (Coarse), Drive Type Hex Socket, Drive Size 1/4 in, Thread Style Partially Threaded, Thread Direction Right Hand, Min. Thread Length 1/2 in, Thread Length 1/2 in, Head Height 0.375 in, Thread Dia. 5/16 in