Shrouded padlock is designed to protect the shackles from bolt cutters. Padlocks are designed for commercial & industrial applications. Heavy steel body is capable of withstanding physical attacks. Hardened boron alloy shackle provides maximum cut-resistance. Dual ball locking mechanism resists pulling & prying. High-security, rekeyable, five-pin cylinder with spool pins is virtually impossible to pick. Padlock is great for use with truck doors, trailers, vans, moving trucks, manufacturing environments & more.