The OnGuard BullDog series u-locks have X2P Double Bolt lock mechanisms and a robust 13mm (0.51) hardened steel shackle for complete protection. This lock also comes with a free 1-year anti-theft guarantee and boasts a 4.6 ton pull strength, making it resistant to drilling and picking. With a reinforced sleeve over the crossbar and cylinder, the 13mm hardened ultra steel shackle adds an extra layer of security.

Specs

• Length:9 ins
• Diameter:13 mm
• Cable Included:No
• Shackle Width:4.5 ins
• Lock Style:Combination
• Advertised Weight:2.82 lbs