How do you stop someone walking off with your cradle if you have the standard ram mount 
http://www.ram-mount-uk.com/ram-b-149.htm
U bolt I can see is not too easy, but only having a wing nut to hold the rest on seems a little easy to me, or am I missing something?

http://www.ram-mount-uk.com/ram-b-149.htm
U bolt I can see is not too easy, but only having a wing nut to hold the rest on seems a little easy to me, or am I missing something?
