The CWB is a 1/2" [12.7mm] thick anodized aluminum concrete wood header bracket with three (3) individual designs for each of the Models M32, M62 or M82 Magnalocks. Installations that contain wood door type frames, steel frames and/or steel concrete filled header frames may require this type of special spacer/structural bracket. The purpose of the CWB concrete wood header bracket is to improve frame mounting strength, Magnalock/Strike clearances, alignments and ease of the installation. The brackets are available for all standard mount M32, M62 and M82 Magnalocks models.