Ok so when doing the final tightening of the projectors in the housings, will the nuts actually get tight? Or do they just get right enough to where the strip out? Thought I read somewhere that it is designed to strip out to be a permanent mount, but can't find it again? I can get them tight, but seems can a bit more, just don't want to break anything. All I have left to do before final cutoff alignment and sealing!