Hello Ron !!
You can get Adel fasteners from Mr. Gasket. They come in a package of six. They are available in the following sizes, 3/16, 1/4, 3/8, 1/2, 9/16, 5/8. Take this link Adel fasteners
, go to the fourth catalog selection down (carb. and fuel system), and download the catalog. They are on page 89. I have used them for several years, and they work great. They have a rubber insulation to prevent the line to clamp rub. I also have some very nice plastic clamps that I use. They are not the cheap plastic loop kind. These add a very hi- tech look to most applications. They are for doing two lines at a time, and keep everything well organized. I don't have a link currently for them, but I could send a picture for anyone interested.
Have a great holiday !!! Brian