So, my 1978 hull has never had an autobailer. I bought one from a guy who wrecked his hull and salvaged some parts. It came without the screw to attach it to the hull. Does anyone know what size screw I should use? I have also heard that there should be an anchor? Is this correct? Or can you just screw it directly into the hull? I have searched, but haven't been able to find instructions for installing an autobailer on a hull that has never had one. Any help would be much appreciated!