Kasp 125 series brass padlocks kasp k12550a7 hardened steel shackle extra protection against hacksaw amp cropping attacks double bolted locking mechanism extra strength to resist torsion amp pull attacks solid brass body added resistance against corrosion 5 pin cylinder with anti pick mushroom pins extra protection against picking paracentric keyway extra protection against manipulation 10 year guarantee kasp k12550a7 premium brass padlock 50mm ka25507