C.K Disc Padlock & Hasp features a hardened steel shackle and stainless steel, zinc plated body for excellent strength and corrosion resistance. The double bolted locking mechanism, 5 pin cylinder with anti-pick mushroom pins and paracentric keyway all protect against attacks, picking and manipulation. The hasp features concealed hinge pins to protect against knock through attack. C.K Disc Padlock & Hasp is an ideal security feature.