Pronunciation: [kˈiː bˈə͡ʊlt] (IPA) 
The spelling of the word "key bolt" can be explained using the International Phonetic Alphabet (IPA). The first part, "key," is pronounced /kiː/, with a long "e" sound. The second part, "bolt," is pronounced /bɒlt/, with a short "o" sound. Therefore, the correct spelling of this word is "key bolt," not "keybollt" or "key bult." It is important to use proper spelling when communicating to ensure clarity and avoid confusion.
A key bolt is a type of mechanical fastener that consists of a bolt and a corresponding key or keyhole. The key bolt is specifically designed to provide additional security and tamper resistance, making it suitable for locking doors, gates, cabinets, or other important structures.
The bolt of a key bolt is typically a sturdy metal rod with a threaded shaft at one end and a head at the opposite end. The head can be square, hexagonal, or round in shape and is used to rotate and tighten the bolt into position. The other end of the bolt is usually inserted through a hole or slot in the structure to be secured.
The key or keyhole of a key bolt is a specialized protrusion or recess that is uniquely shaped to fit the corresponding bolt. It serves as the locking mechanism and can only be operated using the correct key. The key is commonly a small metal device with a patterned end, allowing it to be inserted into the keyhole and turned to unlock or lock the bolt.
Key bolts offer an added layer of security since they require a specific key pattern to operate, making them more difficult to tamper with or pick than standard bolts. This makes them particularly useful in situations where enhanced security is necessary, such as in public buildings, safes, or high-security areas.
The term "key bolt" is a combination of two words: "key" and "bolt". Here is the etymology of each:
1. Key:
The word "key" originates from the Old English "cǣg", which meant "key" or "implement used for unlocking or locking". It is derived from the Proto-Germanic word "kaigaz". The root of this word can be traced back to the Proto-Indo-European base "*kaik-", meaning "hook" or "bend". In various languages, the word evolved to refer to objects used for unlocking or controlling access.
2. Bolt:
The word "bolt" finds its origins in Old English as well, from the word "bolla" or "boll". It meant a "round object" or "spherical object".
