There is no such thing! See Fire-Resistive below.Fire-resistive
This is a feature that many (but not all) safes have. Levels of fire-resistive are measured and rated, either by the manufacturer of the product or by Underwriter’s Laboratories (UL). A typical plastic lockbox sold by discount stores has a ½ hour, 350 degree label. This provides very little protection for papers. Some lockboxes and safes have no fire resistance at all! Good quality fire-resistive safes are available with 1 hour, 350 degree labels and even more. This is the minimum recommended level of protection for documents. The important thing here is to be an informed consumer. Don’t buy a $15 tin box and assume that your documents are safe! Read the exact label on the product you are considering. If it doesn’t have a rating, it isn’t fire-resistive! Protecting plastic media such as computer disks and photographs is a whole different matter! They are ruined long before the temperature reaches 350 degrees. A professional locksmith can educate you and help you select the right product to protect your cherished documents!Fit (a key)
This is a generic term that refers to making a key for a lock by any means other than duplicating. This procedure becomes necessary after all keys to a lock have been lost. Some methods include making keys by code, disassembling the lock to fashion a key, progressioning and impressioning.Function
This refers to the specific features available in different door locks. A passage lockset is one with free access in both directions (non-locking). A privacy lock is commonly found on bathrooms, bedrooms and dressing rooms. An entry lockset is the familiar type with a button on the inside and a keyhole on the outside. Storeroom locks are always free from the inside, but are always locked from the outside. (Building codes typically specify storeroom locks on rooms used to store toxic chemicals.) There are dozens of varieties that professional locksmiths can recommend and supply. Whatever your security needs, there is probably a lock function designed to address it!