For Cat 5e I use a T25 stapler (7/16")
For Coax I also use a T25 stapler. (9/16")

Any fastening method that dents, squeezes, bends or otherwise distorts these cables will affect their performance. If you put a TDR on a stapled run you will actually see where the staples are. CAT cables also may not certify.

The only time you should have any problem finding suitable support or fasteners is when running cable along an exposed surface such as on the wall around a room where you want to make it look nice. Unfortunately there aren't a lot of choices given that the coax or data cables can't be bent tightly either. So the best solution though not the cheapest is to find a way to conceal the cable. Within the wall, behind baseboard or tucked down between the carpet tack strip and baseboard and plastic raceway are some options.

-Hal

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