General description The Master Lock 5KALF-A118 is a durable 51mm laminated steel padlock designed for security and convenience. It features a 38mm hardened steel long shackle, making it suitable for various applications where reliable locking is essential. Technical specifications Padlock size: 51mm Shackle size: 38mm Shackle diameter: 8mm Pin type: 4-pins Keying: keyed alike