The Yale Locks Brass Padlocks are constructed from hard wearing boron and are rigorously tested against corrosion. The 4 pin cylinder with single locking feature (20mm) and 5 pin cylinder with double locking feature (30 & 60mm).This Yale Locks Brass Padlock has a hardened steel shackle and 5 pin cylinder with double locking feature. Tested up to 96 hours for corrosion resistance to ensure protection against different weather conditions. Specifications: Body Width: 30mm.Body Height: 28.3mm.Body Depth: 13mm. Shackle Diameter: 5mm.Shackle Height: 17mm.Shackle Width: 15mm.PTDYALY110B30