Review on Zulkit Junction Box ABS Plastic Waterproof IP65 Electrical Boxes Hinged Shell Outdoor Universal Project Enclosure With Mounting Plate And Wall Brackets Grey 11.8X7.9X6.3 Inch(300X200X160Mm) by Joel Briggs

This is a great, deep, small, gasketed, waterproof, JB. Hardware, latches and hinges are 316 SS. There is a back plate for mounting items, but only short screws, so if your item is deep, like my emergency PB switches, you will need to get 5mm x .8 pitch machine screws. Of course Ebay sells a pack of 10 50mm long for $6. You won't find them in the local hardware store.LOL - I closed the box on a hot day and it sealed so well I couldn't open it on a cold day, air contracted. Yup, it seals!