the body screws are the ones holding the handle together. i’m not sure (been a long time since i took my 580 apart) but i think there may be a few under the scales as well as those that fasten the scales to the liners. and the pivot screw, which is the other one that you’ll have to mess with, is covered by the scales on the barrage. so you’ll have to remove at least one side of the scales (believe it’s on the show side) to get to that. you’ll need a torx t-6 bit for the body screws and a t-10 for the pivot screw