5/8 inch hot dipped galvanized steel bolt. 12 inches long with square nut.
Hubbell Power Systems, Inc. utility bolts are made of hot dipped galvanized steel. These 12 inch bolts, 6 inch thread, come with a 5/8 inch square head and a 5/8 inch square nut. Also known as crossarm bolts or through bolts, each nut and bolt is rated to a tensile strength of 12,400lbs.