On Guard Chain & Lock - Mastiff - D-Lock 14mm X 5.5cm X 5.5cm - Chain 10mm X 130cm

Mastiff series chains & locks are packed with features, and provide superior security for medium/high crime areas.

The premium Mastiff lock has our special X4P locking mechanism and Z-Cylinder for high security, and a big 5.5 cm X 5.5cm shackle that can even be used as a disc lock. Our chain has 10mm hexagonal links for high security, and the special “sinch loop” design offers even more versatility.

LOCK

• X4P Quattro Bolt Locking mechanisms secure the shackle at 4 points.
• Z-cylinder tumbler mechanism that is bump-proof and resists picking, pulling, or drilling.
• Short D-Shackle design eliminates pry points for superior protection.
• Heavy duty 14mm hardened steel shackle resists prying, cutting or jacking.
• Co-molded crossbar cover protects finishes.
• All-metal endcaps provide protection against hits and drops.
• Automatic keyway cover helps seal lock internals against the elements.
• Supplied with 5 laser-cut keys (1 with a micro LED).

CHAIN

• Chain made of 10mm thick, titanium-reinforced, hardened steel links that resist cutting or prying.
• Hexagonal links with tight inside dimensions render prying and bolt cutters useless.
• Clever cinch-loop design adds locking versatility.
• Chain cover protects paint and finishes, with an embroidered logo that won’t flake or wear off