Contol Rod Compatible Bolt Hole Diameter 3/4 in End Type Chisel Point Finish Zinc-Plated Material Steel Material Grade/Class Not Applicable Overall Length 17 in Restricted Motion Direction Expansion Thread Direction Right Hand Thread Fit Not Applicable Thread Size 5/8 In.-11 Thread Type UNC Compatible Joint Type Double Bulb Control Unit Type Control Rod For Pipe Size 6 in Includes Nuts Yes