Mul-T-Lock C-Series Padlock – High security padlock, for enhanced safety and security with hasps or heavy duty chains which accept 13mm sliding bolts. perfect for applications requiring high bolt protection. Smooth operation unlocking with 55˚ key rotation. also available in black or nickel finish and Hardened Steel body for better safet and security. Core made up of core black Plated Solid Brass with Hardened Boron Alloy Steel bolt. Padlock with Additional Features like Protective shutter to prevent dust contamination.