Inch, Structural Bolt, Steel, Fastener Finish Hot Dipped Galvanized, Dia./Thread Size 7/8 In.-9, Fastener Length 5 1/2 in, Fastener Thread Type UNC (Coarse), Fastener Industry Standards ASTM 563, ASTM F3125, Thread Length 1 1/2 in, Fastener Thread Direction Right Hand, Head Dia. 1 7/16 in, Head Height 35/64 in, Tensile Strength (PSI) 105,000 psi, Rockwell Hardness HRC25, Includes Heavy Nut, Package Quantity 20