interne opening: M10 (of wel 1.0 cm)
|Colour:||silver - matt|
|Dimensions (cm):||hole in middle: 1.0 cm , M10 (0.39 inch)|
|Thickness / depth (cm):||0.1 (0.04 inch)|
|Outer Diameter (cm):||2.5 (1.0 inch)|
Metal ring, also called sealing ring, washer or body ring.
This has an outside diameter of 2.5 cm / 1.0 inch with an opening in the middle of 1.0 cm / 0.39 inch and a thickness of approx. 1 mm / 0.04 inch.
Can sometimes come in handy when you're repairing lights.