I would like to install a storm hatch over the companion way hatch so that I can leave the center of my dodger attached and still use the sliding hatch. I have seen a few of the screw-on storm hatches on other boats and lots of the glassed-in storm hatches on many boats. I would be happy to obtain a screw-on, bedded hatch if one is available. My boat is a 28 O'day and if there is anyone out there who has seen such a hatch and knows where I can find one I would appreciate that info. Thanks, Mike