OnGuard BullDog series u-locks feature X2P Double Bolt lock mechanisms and strong 13mm (0.51”) hardened steel shackles for a full circle of protection.
Bulldog includes free 1-year, anti-theft guarantee
4.6 Tons pull strength with anti-drill and pick resistance
Hardened ultra steel shackle with reinforced sleeve over crossbar and cylinder for added security
13mm hardened ultra steel shackle
X2P Double Bolt Locking Mechanism locks shackle on both sides
Z-Cylinder is bump-proof and resists picking, pulling, or drilling
Hefty 11-13mm hardened steel shackle resists cutting, prying, and jacking
Rounded design and centered keyway eliminates pry points
Double rubber coated crossbar cover protects paint and finished
Extra thick molded endcaps protect against bumps and hits