The Henry Squire CPS Heavy-Duty Rustproof Marine Combi Padlock has a hardened stainless steel, rust-proof shackle with a tough die cast alloy lock body. The padlock is highly resistant to corrosion, offering excellent protection from the elements. The dual compound body cover provides comfortable handling. It has 4 combination wheels spaced comfortably apart, easy to use and cannot be accidentally re-coded. You can choose your own code, with a possibility of over 10,000 combinations to choose from. It is suitable for the following: Boats, Sheds, Lockers, Tool boxes and Storage areas. CRIMESTOPPERS endorsed.Henry Squire CP40S Heavy-Duty Rustproof Marine Combi Padlock Body Width: 38.0mm.Body Thickness: 22.0mm.Shackle Diameter: 6mm.Vertical Shackle Clearance: 19.0mm.Horizontal Shackle Clearance: 17.0mm.