The Master Lock No. 8170D U-Lock features a 6-1/8 in wide hardened steel body for maximum strength and reliability. The 1/2 in Dia double locking shackle is 8 in long and made of hardened steel, offering extra resistance to prying, cutting and sawing. The disc key cylinder prevents picking. The limited lifetime warranty provides peace of mind from a brand you can trust.
Hardened steel body resists cutting, sawing and prying
Hardened steel body resists cutting, sawing and prying
Double locking shackle for great pry resistance
Protective vinyl coating helps prevent scratching
Integrated disc keyed locking mechanism for maximum pick resistance