Specifications : Center Tapped 1/4 IP Threaded Finish : Brass Dimensions : 4 In L Includes : (1) 4 In Flat Crossbar, (1) Screw Collar Loop, (1) 1/4 IP Locknut, (1) 3/8 IP Locknut, (1) 3/8 IP X 1/4 In Hickey, (1) 1/4 X 1-1/2 In Nipple And (2) 8-32 X 1/2 In Mounting Screws