Hi, My boat is older, and has apparently suffered some bangs into things. The side handrails/guard rails are bent inward on my port side. So, I figured I'd unscrew the allen set screws and attempt to straighten them out. But, some of them have rivets instead of allen set screws. Do you have to grind those off? And then through-bolt them? Or thread the pipe for more set screws? Any hints for straightening the "pipes"? Or does that not work too well? Thanks to you all!