Nuts and bolt aren't the only types of fasteners used in product assembly. Retaining rings, Speed Nuts and a variety of other specialized metal and plastic fasteners have been developed. These specialty fasteners can often save time in the assembly process, eliminate the need for additional fastening components, lower manufacturing costs and maximize holding power.
Speed Nuts can be used instead of threaded nuts, lock washers or spanner washers, and they do not require special tools to install. Unlike ordinary threaded nuts, Speed Nuts do not have to be tightened with a great amount of torque. In fact, any torque applied beyond the recommended installation torque could cause a loss of spring tension resiliency.