Padlocks Class 2 Padlock body of extruded brass, black chrome plated Shackle of rustproofed hardened steel, 8mm diameter Drainage holes in the padlock body prevent freezing, no external screws or rivets Tensile strength over 1 1/2 tons P2640 - Snap locking P2641 - Key locking P2643 - Key locking extended shackle P2646 - Key locking 10mm dia. shackle P2649 - Key locking closed shackle