The Squire ATL All Terrain Padlock is a highly weather-resistant padlock suitable for the harshest environments. It has a solid brass lock body with anti-corrosion components and a weather protecting cover. Additional weather resistance is provided by a stainless steel shackle. Available Sizes: 42mm and 52mm. This padlock features a stainless shackle with a brass body and protective cover, and is salt spray tested to over 200 hours. It also has a double locking mechanism and includes 2 keys. All dimensions are as follows: Padlock Body Width x Shackle Diameter x Max. Interior Shackle Height. LS: Long Shackle, KA: Keyed Alike, CS: Closed Shackle.