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, which 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.