Name: MK612 Square Shape Pad Lock. Specifications: • Material: brass, harden steel. • Finished: shiny chrome. • Key combination: over 10,000. Specialty: 1. Heavy duty pad lock for industrial use. 2. Durable material anti rust, water proof. 3. Top security disc key system. 4. Customer-oriented development available. Application: Ware house, metal/wood cabinet, electrical equipment, server, vehicle, boat, automobile, box, kiosk, train, locker, etc.