When I have to deal with the kind of clamps that are used on the coolant lines I prefer to deal with them just once. Remove them and put them right into the trash can. For the replacement clamps I go to a marina or someplace where I can buy marine grade screw type clamps. The reason for the marine grade clamps is that they are entirely stainless steel. Non-marine grade, the clasp and screw are generally nickel plated steel and will eventually rust.
