Putting play to a constraint in an assembly

Hi all

I model parts that will be bolted together. The assembly is precise and as they will be powder-coated, so with a very slight over-thickness compared to my model, I would like to include games during the assembly. 5 tenths here. The simple method would be to put a distance between two faces instead of a coincidence and it would work very well. Given the power of the software, there may be a function or parameter that allows you to directly include a game, recognized and treated as such and not as a distance. I'm working on 2016.

The help of solidworks didn't help me much.

Thank you all.