2 Common key lock means all 2lock have 5 same key

2 Padlock 5 Same Key Lock Se

A long shackle is a type of padlock shackle that has a longer shackle length compared to a standard shackle. The shackle is the U-shaped piece of metal that goes through the loop or eye of the hasp or other locking mechanism to secure it in place

Double locking refers to a locking mechanism in which a lock has two locking points that must be engaged in order for the lock to be secure. This is typically used in high security situations, such as in safes or vaults, as it makes the lock more difficult to pick or force open.

7 lever lock is a type of mechanical lock that uses 7 levers to secure the lock mechanism. The levers act as obstacles that must be correctly aligned in order for the lock to open. Each lever is a small metal bar that sits in a chamber within the lock. When the correct key is inserted, it raises or lowers each lever to the correct position, allowing the lock to turn and the door to open. 7 lever locks are considered to be very secure and are often used in commercial and industrial settings