This Valterra Cam Lock with 751 Key keeps your RV's hatch securely closed with this 1-1/8 inch thick, offset cam lock. Specifications•Compatibility: Hatch Doors•Length: 1-1/8 Inch•Quantity: Single•Estimated Install Time (Hours):0.5 Built To Provide Exceptional Levels Of Durability Easy To Use | Valterra Lock Cylinder 1-1/8 with Key