CURT A-Series 5th Wheel Wedge Kit for Rotating Pin Box Model 16994 6108DFJ40 It has a hub diameter

It has a hub diameter of 3/4" and a handle length of 7-1/2"

We recommend the 1721363 Buyers Top Mount for commercial use

and we coat our gooseneck brackets in a liquid A-coat to make sure rust and other potential damages are not a problem

The shank fits any 2" x 2" receiver tube opening

CURT A-Series 5th Wheel Wedge Kit for Rotating Pin Box Model 16994 6108DFJ40 It has a hub diameterCURT CURT A Series 5th Wheel Wedge Kit for Rotating Pin Box Model 16994 A CURT 5th wheel wedge is a simple but reliable way to allow a CURT 5th wheel hitch to be used with a 5th wheel pin box. A pin box mounts on top of the 5th wheel head and provides a new pivot point for the kingpin and wider turn radius for the 5th wheel trailer. To keep the pin box from swiveling in its 5th wheel mounting location, a 5th wheel wedge inserts into the hitch head,