No lock.Replace M1-63Slam latches, push and pull closed cabin deck 1/2" doorThis kind of lock is widely used by all major yacht and yacht manufacturers. And it also applies to new applicationsFlush shape and simple mounting make this latch perfect. Hatches, activity wells, electrical enclosures and other compartments on boardspecification:Cut hole: 38mmColour: Blackmaterial: plasticDoor thickness: 1-10mm1 It includes all the hardware required for installation (screws, mounting plates and lock plates)2, anti-corrosion materials and reinforced plastic materials, durable, waterproof, no rust, light4. Widely used in equipment, ships, automation equipment, automotive industry5.Embedded configuration and simple mounting make this latch Prefect for hatchesElectrical accessories, and other cabins on your vessel, RVPackage Contents:1 x RV Lock1x AccessoriesOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.