Centers: 1 1/4" (32mm), Width/Overall: 2" (52mm), Height: 3/4" (18mm), Projection: 1/2" (13mm)Centers: 5" (128mm), Width/Overall: 5 7/8" (148mm), Height: 3/4" (18mm), Projection: 1/2" (13mm)Centers: 7 1/2" (192mm), Width/Overall: 8 3/8" (212mm), Height: 3/4" (18mm), Projection: 1/2" (13mm)Centers: 12 5/8" (320mm), Width/Overall: 13 3/8" (340mm), Height: 3/4" (18mm), Projection: 1/2" (13mm)Centers: 16 1/4" (416mm), Width/Overall: 17 3/16" (436mm), Height: 3/4" (18mm), Projection: 1/2" (13mm)Screw: M4 x 1 3/4 (45mm) Break-offMaterial: Aluminum