Hex Head Cap Screw System of Measurement Inch Basic Material Steel Material Grade Grade 9 Fastener Finish Zinc Yellow CR+3 Dia./Thread Size 3/8 In.-16 Fastener Length 4 in Fastener Thread Direction Right Hand Fastener Thread Type UNC (Coarse) Fastener Thread Style Partially Threaded Fastener Industry Standards L9(R) Head Type Standard Min Thread Length 1 in Head Height 9/32 in Head Width 9/16 in Package Quantity 10