Sorry Cwago I misunderstood your question. I use the small fuel line aero clamps & haven't had any slippage at all. This is on a 102 in stainless steel cb antenna. Ran all week at the Outlaw jamboree at Eager AZ with a lot of low hanging branches, no problem. Just run them thru the grommets. Enjoy!
I am not able to print pics yet Cwago, the clamps are miniture radiator hose clamps that you tighten with a screw driver, they are used on fuel lines. Any auto parts has them.