a. There are two types of hitch pins, Threaded or Smooth, available in standard or locking
b. Threaded hitch pins are the same size (1/2” x 13 Threads Per Inch) for 1-1/4” and 2” receiver racks. They are available in standard (provided with the rack) or locking (available from our website).
c. Smooth hitch pin is ½” diameter for 1-1/4” receiver racks and 5/8” diameter for 2” receiver racks.
d. All smooth hitch pins sold now are locking. Older racks using a smooth hitch pin had a hole at the end of the smooth hitch pin for a keyed padlock (also provided at that time).