Unfortunately, this adapter only 4 holes with uniform spacing and is therefore not really suitable for the intended use. Unfortunately, it shares this characteristic with the vast majority of other available adapters. So I will not get around to fasten the whole with only one screw per side.
And why two point deduction? For the packaging of the goods. 3 This adapter stacked in an absolutely flat Papptasche. As a result, one was bent out of three. A use of pliers was necessary. But I doubt that I'll still be able to return this product.