Ideal protection against bolt cutter attacks with a fully shielded design that minimizes shackle exposure. Case-Hardened 3/8 steel shackle for extra cut resistance. If you order two 10-packs or any multiple of this lock we will automatically key them all the same. Multi use, ideally suited for self storage units, sheds, trailers and vans. Ideal protection against bolt cutter attacks with a fully shielded design that minimizes shackle exposure. Case-Hardened 3/8 steel shackle for extra cut resistance. Key retaining feature ensures padlock is not left unlocked. This listing is for 10 locks and 20 keys and is ideal for all indoor or outdoor applications when needing multiple locks that open with the same key. If you are purchasing a merchant fulfilled item you can order as many multi packs as you want and they will automatically be keyed alike. This style lock is available as a single lock, and a 2, 3, 4, 6, 8, and 10-pack.