Securikeys Gold Rated High Security Key Filing System, Secured by Design, Police preferred Specification, with a body constructed from 3mm steel, as used in the manufacture of cash safes and a 6 mm steel slab door, the Standard Key Safes provide unparalleled protection and are used extensively throughout the UK’s prestige motor dealers, police stations and banks. Three way locking mechanism with 20 mm diameter bolts. Available in deeper models for the storage of bunches of keys.