Technically a "bleeder screw" would be at the highest point in a cooling system if that isn't the rad cap or coolant bottle, to bleed out air that could get trapped there.

That said, there is a coolant drain plug screwed into the side of the block, if that's what you meant. For the 4G54 it's below and aft of the exhaust manifold, not sure about other engine types. Mine seemed to be seized, wouldn't budge no matter what I did, so I just left well enough alone and drained via the radiator. Also discovered my rad drain has a hose fitting (5/16" ID just like fuel hoses, IIRC?), so was able to attach a hose for tidy drainage rather than having coolant slop all over the place.