Screw Sizes 

3/4 Inch (19mm)

1 Inch (25 mm)

          1 1/4 Inch (32 mm)

          1 1/2 Inch (38 mm)

          2 Inch (50 mm)

screw size above

Caps Brass Dome

         Brass Flat 13mm

        Chrome Dome

         Chrome Flat 13mm

Grommets Optional