Hello

I'm working on accessory for bikes. I need information what tolerances is necessary for parts that will be assembled. Probably product will be made of ABS or PP material. In attachment, added images show what I mean. Added link to Obj files too. Have in mind this is a prototype, and right now I'm working on the final part, and want to avoid production and assembly problems.

Link: https://www.dropbox.com/sh/qnq3tfktjksh6xp/AADIHO-dVwV5ynQTeBOFPqtwa?dl=0