Stanley Hardware S828-152 CD8820 Shrouded Hardened Steel Padlock in Silver, 50mm Width Astm Security Grade 4 Molybdenum Cut Resistant Steel Shackle Protects Against Sawing And Cutting Attacks Hardened Steel Body Protects Lock From Attacks ASTM security grade 4 Full shrouded, hardened steel body Dual stainless steel ball-bearings resist pry attacks Commercial 6 pin cylinder with anti pick pins Patented Keyway Cover Protects Against Drilling