RV Door Lock - ChromeProduct Description: Specially designed for travel trailer entrance door applications,this lock set features built in deadbolt and provides the ultimate in security, safety and style. Built in deadbolt eliminates the need for an add on residential type deadbolt. Requires the same cut out detail as standard latch assembly. Deadbolt locks into the fully extended position for true deadbolt functioning. Master keying is standard for paddle key cylinder.