I bought the locking kind on Ebay for $14 including S & H from some guy in Brazil. (Brazilianking--no longer a registered user.) You carry a set screw on you key ring and screw it into the side of the cap to take them off and put them on. Withour the set screw the top rotates without the threads. Secure but it's a real PIA! I took them off and put the easy to steal versions.
|