Wall Hanging Bracket for single M140 Track, with two 9/16" holes for mounting to wall. Four 3/8 inch bolt holes are used to mount the included Trackhanger short 9 inches off of the wall. Material is 3/8 inch by 4 inch by 20 inch 6061T-6 aluminum bent 9 inch up from wall bolt end with 2 inch diameter punch. 16" up from wall bolt is also available.