I'm looking for some metal clips to hold down brake lines etc. I've got a lot of plastic ones, but I don't want to use plastic clips. They look like the letter "P" and have a hole in the stem to secure them. Would like them to be in some sort of coated metal and able to hold 3/16 and 1/4 line. I've checked my favorite place. www.mcmaster.com but can't find anything.