The Galvanized J Bolts are finest quality steel bolts that are galvanized and set into the concrete base pier when it is poured. Constructed for tower specific hardware, these resilient bolts anchor Rohn tower concrete base plates and hinged base plates to the concrete pier. The hinged base plates are drilled to use six of these J bolts and allow for the tower to be rotated up from the base during installation or maintenance. These professional performance bolts for inclusion in the concrete pier pouring include two hex nuts. Furthermore, they are to be suspended in a concrete pour by means of a template or jig. ISP Supplies is a certified distributor of Rohn, offering a variety of its certified Galvanized J Bolts at the best value.