Kasp 180 series hardened steel padlocks kasp k18060xd this kasp 180 series padlock has a hardened steel closed shackle for extra protection against hacksaw and cropping attacks and a double ball bearing locking mechanism for extra strength to resist torsion and pull attacks this padlock is covered by kasps 10 year guarantee kasp k18060xd hardened steel padlock 60mm close shackle