Metro Wing 800 Bracket This bracket is the same as the "Metro Wing Bracket #8", only this larger bracket is 24" long and it can handle today's larger 9" tall street name signs (or other signs). The "Metro Wing #800" also has a third set screw location (for securing the sign to the bracket) and it has more holes for bolting the bracket to a pole or wall. This bracket is usually strapped and/or bolted to traffic light poles or telephone poles. 5/16” thick slot will work with both standard extruded and flat street sign blanks