Hi.. does anyone know where i can get something like the fixing Ikea use on the Billy shelving systems? With them its just a steel pin with a flange in the middle for depth stop, the shelf sits in top with a rebate the shape of the pin for a nice flush finish, and of course being underneath.. max strength. I'll be putting a large mdf/veneer shelf in a recess in a room and fancy the same trick. Does anyone know where you could buy something like that that can be affixed to the walls on either side? Failing that, some attractive rails in a metallic finish...