The ABUS 65 Series open shackle brass padlocks have a body which is made from solid brass, hardened steel shackle up to 30mm and hardened steel alloy shackle 40mm and above. The inner components are made from non-corrosive materials. The precision pin cylinder has mushroom counter pins with the paracentric key-way offering greater protection against manipulation. They are suitable for low to medium security requirements and are also suitable where a strong requirement for service performance and longevity is required. The padlock locking is automatic, it does not require a key.Overall width: 20 mmOverall height: 34 mmOverall depth: 10 mm Shackle width: 9.5 mm I.D.Shackle height: 11.5 mmShackle Dia: 3.5 mm