Product review (5 stars): Right size for standard coax
This is the cable clip you want for clamping standard RG-6 and RG-7 coaxial cable to wooden structural members. The opening is big enough to accommodate the cable snugly but without crushing at all. The nail is about a 6d brad, not too thick to crack smallish wood trim e.g. quarter round. It took a while to get it (ships from China), but worth the wait for a professional installer who insists on the right hardware for the job.