Ercole M11-020 Spigot Steel 1-1/8″ 28mm male stud with plate

16mm female adapter.

For more accurate light positioning: it helps keep the light in horizontal position independently on the angle of the boom. Specifically designed to be used on boom arm with light attachment with 16 mm pin.

A special long 1/4′ camera screw used in conjunction with the hexagonal 030 camera plate which allows you to fit the Metz flash bracket.