alternator fuse replaced, now car won't strt

[judylink]

New to this forum and also new to working on cars . . . .Our GS300 has been sitting for the winter. We charged up the battery and had it running but no electrical was working at all.  We could see the alternator fuse was blown so we replaced that fuse pretty much as indicated in a previous post we found from 2009 - the one we got (special order) was a little too short so we cut it shorter to get the holes for the bolts in.  However we stripped one of the screws holding the fuse in place (looks like it shouldn't be important? Can't get the right size locally so we've left it out for now)  Now however you turn the key and nothing happens.  We recharged the battery in case that was the problem but it still won't start - but before we changed the fuse it started, just nothing electrical was working.  Any ideas? 

[Exhaustgases]

This is the forum for LS400 not GS300, so we may not know exactly whats happening.

If you stripped the threads that are the connections for the fuse, then very likely the connection is not very good so the current is not flowing through the fuse.

Are the striped threads into metal or plastic? If plastic you may be able to use an epoxy to fill the stripped threaded hole and let it cure then redrill the hole and of course the hole needs to be smaller than the threads sticking out on the side of the screw. Most screws that fit into plastic are a self threading type of screw.  Oh and most importantly always disconnect the battery before doing any electrical stuff other than changing lights and small fuses. If its the bolt in type fuses you should disconnect the battery so you don't short the connection with a wrench or tool. If there are sparks you could be messing something else up that is electronic.