We suggest a hand screwdriver, though most use a drill driver. The drill drivers often slip the screws some and they loosen in time. You can put a bit of 24 hour epoxy in there or use fiberglass resin to tighten the hole. You can wax the screw and put resin in there and leave the screw thourhg a piece of masking tape sealing the hole. This will leave cast threads for the future. BCB