Identical keys Standard shackle padlocks restrict access to property and have a shackle with a vertical shackle clearance of less than 1.5". They are less vulnerable to cutting than long shackle padlocks due to their lower clearance. They're frequently utilized in circumstances when a small group of people needs access to many locks, such as filing cabinets in an office or toolboxes in a shared workspace. These padlocks are keyed alike, allowing users to use the same key to open all of the locks in a set.