Metric Left Hand Nuts

Left hand nuts, also known as reverse-thread nuts or left handed threaded nuts, are a type of fastener that have threads that turn counterclockwise to tighten. This is the opposite direction of traditional right handed threaded nuts.

Left hand nuts are not as common as right hand and are typically used in specific applications where they serve a specific purpose. The main purpose being to prevent unintentional loosening of the fastener due to vibrations or other external forces.  They are commonly used in applications such as rotating shafts, bicycle pedals, or certain types of machinery where it is essential to prevent the nuts from coming loose.

We stock them in metric and metric fine, in zinc plated or unplated self colour.  Diameter options include: M3, M4, M5, M6, M8, M10, M12, M14, M15, M18, M20, M22, M24, M27, M30, M33, M36, M39, M42, M45, M48