We have a metal cleat vintage salvage item.  It is metal with some rust peaking through as shown in my photo's.  It measures about 2 3/4" in W across the top ends with the base with the 2 screws measuring about 1" x 3/8" and the spread bars about 1/4" across.  The upright bars from the top to the back screw base is about 3/4" in D.