SPRING NUTS A spring nut, sometimes referred to as a speed nut or spring clip, is a kind of fastener that attaches itself to a threaded bolt or rod by using the elasticity of a spring. Usually, it is made up of one or more connected coils or spring-like protrusion attached to a threaded metal nut. The spring component of the nut pushes against the bolt's threads as it is tightened onto the bolt, producing tension and locking the nut in place. This design makes it simple to install and remove without the need for extra tools, which makes it especially helpful in situations where access is restricted or frequent disassembly and reassembly are necessary.