No, my door is 1.5cm thick and it just fits.

The two upper brackets for hanging the door hanging rail on the door have an internal dimension of 20 mm.

Hello, door without door rebate with 4 cm this unfortunately does not fit

I have this model with the 6 hooks, which has a width of 51 cm. The width of the suspension is 2 cm and this fitted my door without any problems. The door is a good 7 cm thick in total, but it consists of 3 parts and the suspension is only via the innermost (i.e. the 3rd part of the door layers) - and this is only 1.5 or max. 2 cm wide. This means, however, that the specification here at Galaxus of 5.5 cm or 8 cm width is incorrect. You can see that the shorter model has only 4 hooks, the wider one 6. Hope this helps.

No, only the two suspension hooks are coated.