Self-latching flush bolts are often called constant latching flush bolts. These bolts are a combination of the manual extension flush bolts and automatic latching flush bolts. The top bolt must be manually retracted by a push-button or slide in order to open. However, unlike the manual flush bolts that holds the bolt retracted, the constant latching bolt is spring-loaded and projects itself back out when the slide or push-button is released. Additionally, the top bolt has a beveled face, similar to a latch on a bored lockset. When it comes in contact with the lipped strike it will re-latch by itself. If a top bolt and a bottom bolt are used, the bottom bolt will be an automatic latching flush bolt.