HEX HEAD CAP SCREW, SYSTEM OF MEASUREMENT INCH, BASIC MATERIAL STEEL, MATERIAL GRADE GRADE 8, FASTENER FINISH PLAIN, DIA./THREAD SIZE 2 IN.-4-1/2, FASTENER LENGTH 8 IN, FASTENER THREAD DIRECTION RIGHT HAND, FASTENER THREAD TYPE UNC (COARSE), FASTENER THREAD STYLE PARTIALLY THREADED, FASTENER INDUSTRY STANDARDS ASME B18.2.1, HEAD TYPE HEX, MIN. THREAD LENGTH 4 1/4 IN, HEAD HEIGHT 1 7/32 IN, HEAD WIDTH 3 IN