What is a B nut?

A B nut, or "B-nut," is a type of fastener used in various applications, particularly in Plumbing and hydraulic systems. It is typically a hexagonal or cylindrical nut that allows for the secure connection of hoses or pipes to fittings. B nuts are designed to create a reliable seal and facilitate easy disassembly for maintenance or repairs. They are commonly found in systems that require high-pressure connections.