Pins, by definition, can not be tightened up.
If something has worn beyond specifications it has to be replaced or a busing fitted.
If a threaded part has loosened up from vibration, heat-cycling, etc., then you have to find how to engage the correct tool (wrench, screwdriver Allen key, torx, etc.) to tighten it properly.
Anything dealing with gas struts has to be considered carefully since they are under tension 100% of the time.
TT 2015 19RD "TheJayco"
TV 2003 F-350 "Montblanc" - Housebroken chore truck
Sitting in The Cheap Seats.
And proud of it!