50mm Solid Steel Master Keyed Padlocks. Supplied with 2 unique keys per padlock and one master control key. Provide high level of security ideal for site maintenance. CEN 3 European standard for padlocks. Specifications: Body W x H x Th: 50 x 47 x 26mm. Max shackle W x H: 22.2 x 24mm. Shackle dia: 10mm. Weight: 0.468kg.