These RV door locks have a built in deadbolt. This provides that extra sense of security. RV door locks for travel trailers come in black (shown), white and chrome. This model is designed for travel trailers, yet works well with cargo haulers, horse trailers or custom utility trailers. These locks fit door thicknesses from 1-1/4 inches to 1-1/2 inches. They are made from durable zinc die cast metal. You can choose from powder coated paint finish (black or white) or textured chrome. Includes door edge cover plate, strike plate and mounting screws. One lock per box.