ONE mount bracket with attachment fasteners to mount most awnings that use a slotted extrusion on the back of the awning for mounting. These generally use an 8mm bolt. The bracket bolts down to your Bowfin rack using 4 1/4'-20 bolts and 10 series T-nuts.
Order the brackets individually- 2 brackets for lighter straight awnings, and 3 for heavier 270 degree awnings.