ABUS 83 Series Chrome plated brass open shackle heavy-duty padlock with a NanoProtect Chrome Plated shackle. The NANO PROTECT™ coating is made up from hardened steel & through hardened steel alloy shackles, to provide the most effective protection available, where smallest nano particles close the smallest gaps found in the normal chrome plating, making rusty shackles a thing of the past. This has been tested for 1,000 hours in a salt bath, the equivalent of 40 years in a harsh environment, proving the durability of the NANO PROTECT™ process. The Pin tumbler cylinder has rust free components with anti-pick mushroom pins. The 83 series range of padlocks offer a medium to high level of security, with the ability to offer various levels of security within one keying system and is suitable for internal or external use.Specifications Overall width: 48mmOverall height: 87.5mmOverall depth: 20.5mm Shackle width: 23.5mmShackle height: 27mmShackle Dia: 9.5mm