Onguard Mastiff Chain Lock w/Padlock

The Mastiff Chain Locks Series is engineered to deliver uncompromising security in high-risk areas. Featuring the X4P Quattro Bolt Locking Mechanism, these locks secure the shackle on four sides, providing ultimate protection against theft. Designed with robust materials and advanced technology, the Mastiff Series ensures your valuable possessions remain safe and secure.

• X4P Quattro Bolt Locking Mechanism locks the shackle on four sides, maximizing security.
• Z-Cylinder is bump-proof and resistant to picking, pulling, and drilling, making the lock tamper-proof.
• Hardened Steel Shackle constructed from 14mm (0.55”) hardened steel resists cutting, prying, and jacking.
• Titanium Reinforced Hexagonal Link Chain available in various dimensions, offers strong resistance against cutting and prying.
• Durable Coatings with a co-molded crossbar cover and double rubber-coated shackle protect your bike’s finish from scratches and damage.
• Weather Resistance with automatic keyway covers that seal lock internals, protecting against the elements and extending lock lifespan.
• Versatile Design allows the Boxer U-lock to also function as a disc lock, providing flexible security options.