C25843 - Key locking extended shackle Application Green stripes indicate Security Grade 3 to BS EN 12320. Specification Padlock body of extruded brass, black chrome plated. Shackle of rustproofed hardened steel, 8mm or 10mm diameter. Drainage holes in the padlock body prevent freezing. No external screws or rivets. Tensile strength over 1½ tons. Finish Standards C25846 - Key locking 10mm dia. shackle C25841 - Key locking C25849 - Key locking closed shackle