Alu threads are fragile. Easy to strip. Cam chain tensioner housing and head cover is typical for my CB750.
I usually think as dave500, do not torqe more than phillips heads with a std scredriver. I have allen bolt screwdrivers.
Good idea to have a thread repair kit, helicoil type. (M6). I have some threads to repair for next winter. Some possible to fix by using longer screws.