Tightening Driver Screws

don't make it habitual. you don't need it more than once in couple of years.

Try a dab of lok tight...

Over tightening could eventually lead to stripping. Also one needs to be careful when using metal screwdrivers close to strong magnets, one slip could lead to torn drivers.

Thanks for the suggestions. Was quite scared and very careful. Was surprised how loose a few were, and yes, I tightened very very gently...

The (main) reason the screws/bolts loosen up on drivers -- particularly on woofers and larger mid-range drivers, where the screws go deep into the baffle (or all the way through it, in the case of bolts-into-T-nuts,) is because the wood expands and contracts with changes in humidity through the seasons. And particle board seems to be most prone to this kind of expansion/contraction.

If your speakers are fastened to a particle board baffle with wood screws, you'd be wise to replace them with bolts-and-T-nuts, because you can only re-tighten screws in particle board a few times before you strip out the holes ;~)