Flex-a-lite 32060 Zinc Anode Drain Plug Kit

Is there another place aside from the drain hole where this could be mounted? I would want to keep a petcock drain in there instead.

Would the drain hole in the side of the engine block be a good place to put this if you cut some of it off.

Is this a 1/8 npt fitting?

How long is the over all length. Also how long is the zinc not including the brass?