Control Unit, Compatible Bolt Hole Diameter 7/8 in, Compatible Grainger Part Number Not Applicable, Compatible Mfr Part Number Not Applicable, End Type Straight Cut, Finish Not Applicable, Material Steel, Material Grade/Class Not Applicable, Overall Length Not Applicable, Restricted Motion Direction Expansion, Thread Direction Not Applicable, Thread Fit Not Applicable, Thread Size Not Applicable, Thread Type Not Applicable, Standards ANSI B16.5, Compatible Joint Type Double Bulb