ABUS Mechanical ABUKA54157 83/55mm Rock Hardened Steel Padlock Keyed Alike 2745 The ABUS 83 Series Rock Hardened Steel Padlocks have a body and shackle made from hardened steel chrome-plated with NANO PROTECT coating for extreme corrosion resistance. Fitted with a 6-pin tumbler cylinder that features anti-pick mushroom pins this helps to resist picking. The padlock is fitted with a patented Z-Bar can be adjusted to operate key retaining or non-key retaining automatic locking or key to lock. Ideal for securing valuables/goods of greater value or at a high risk of theft. This ABUS 83/55 Rock Hardened Steel Padlock has the following specification: ABUS Security Level: 9. Keyed Alike Key Reference: 2745. Shackle Width: 25mm. Shackle Height: 37mm. Shackle Diameter: 11mm. Overall Width: 55mm. Overall Height: 102mm. Overall Depth: 25mm.