My Carefree of Colorado Spirt awning came with permanently attached swivel clamps from the manufacturer, and they are 8 years old and still hold well, even in some pretty good winds.
2003 Ford F-350 V-10 Crew Cab 4WD Long Bed
2004 Jayco Designer Medallion 29 RLTS 5th wheel
Bill, Gayle, and Mindi (dachshund)
Retired at last !
Nothing is foolproof to a sufficiently talented fool.