2. The dropout has two 6mm holes in it that line up with the two threaded holes on the adapter. Using the two M6 X 1.0mm X 15mm bolts attach the adapter to the out side of the dropout. Tighten to 8 ft-Ibs or 10.8 Newton meters. (A thread locking device such as Locktite #271 needs to be used on each of the bolts.)
3. Attach the disk brake caliper to the adapter according to the manufactures directions.