Split lock washers are a type of fastener used to prevent nuts and bolts from loosening due to vibration or movement. They are made from a circular piece of metal that is split and twisted, creating a spring-like effect. When a bolt is tightened, the washer compresses and exerts pressure against the nut and the surface, helping to maintain a secure connection. These washers are commonly used in various applications, including machinery, automotive, and construction. Their design allows them to grip the surfaces tightly, making them effective in maintaining the integrity of assemblies. Split lock washers are often paired with nuts and bolts to enhance overall stability.