Not sure why your awning would not be secured to the side of the trailer simply by the spring pressure against the fabric. I thought when you mentioned awning clamps, that you were having problems with the awning luffing in the wind while deployed and I use three sets of these clamps on my awning when it's opened. If you are looking for something for when you're traveling that may do the trick though it shouldn't be necessary. Many of the instances of awnings unfurling while under way happen because someone leaves the lever in the wrong position (unlatched) while traveling OR when the spring that keeps it there is not functioning properly. Either way, good luck and happy traveling / Skip