The coated padlock Master Lock No. M1BEURD features a 45 mm wide body made of coated steel for maximum strength and reliability, surrounded by exterior components made of brass and zinc for weather resistance. The octagonal shackle, with a diameter of 8 mm, is 24 mm long and made of Tough-Cut™ boron carbide, which is 50% harder than hardened steel and offers maximum resistance to cutting and sawing. The 4-pin locking cylinder prevents the lock from being picked, while the two ball bearing locking mechanisms protect against forced entry or smashing. The lifetime limited warranty provides you with the assurance of a brand you can trust.