OnGuard Mastiff Chain Lock

A short-shackle Boxer U-lock with X4P Quattro Bolt locking mechanism paired to a 3.5-foot long, 10mm titanium reinforced, hardened steel hexagonal link chain. Boxer U-lock can also be used alone as a disc lock.

• Chain Dimensions: 110x10mm
• Z-Cylinder is bump-proof and resists picking, pulling or drilling 
• Rounded design and centred keyway eliminates pry points
• Co-moulded crossbar cover and double rubber coated shackle protects finishes
• All-metal end caps provide additional protection against hits and drops 
• Automatic keyway covers helps seal lock internals against the elements
• 10mm titanium reinforced, hardened steel hexagonal link chain resists cutting or prying
• Chain cover protects paint and finishes, embroidered logo won’t flake or wear off 
• Boxer U-lock can also be used as a disc lock
• Locking Mechanism: X4P Quattro Bolt
• Tumbler Mechanism: Z-Cylinder, European Type
• Shackle Diameter: 14mm Hardened Steel 
• Keyway: Automatic Weather Resistant
• Coatings: Co-moulded Crossbar Cover with Metal End Caps
• Keys: 5 Laser Cut Keys, 1 With LED Micro-light
• Warranty: Lifetime
• Extras: Embroidered chain cover