: 53 mm features: Abus Laminated 53 mm Padlock Pin tumbler cylinder with anti-pick mushroom Padlocks can be supplied assembled or keyed by Locksmiths to their exact requirements The RH 4/5 Keying system allows a whole range of ABUS padlocks to be incorporated in a single Keyed Alike (KA) or Master Keyed (MK) suite Individually plated laminated steel : Up to 40 years weather protection 30mm with hardened steel shackle : 40mm and above with through hardened steel shackles