Brass cam-locks are used where the application requires corrosion resistance or extra strength. For example, they are popular in marine refueling where durability, salt water resistance, and non-sparking features are all important. G65BR couplings are manufactured from copper alloy grade 377 to the Commercial Item Description (CID) #A-A-59326B specification. Female couplers are supplied with locking clips. Please note, cam-locks should not be used with compressed air or other compressed gases.