本国际标准规定了通过六角螺母和带有18 mm、20 mm和22 mm螺柱的平座固定垫圈确保道路车辆上车轮或轮辋正确装配的试验方法和性能要求。它适用于ISO 3833中定义的商用车辆和ISO 7575中规定的螺母。不适用于不太常见或特殊应用的紧固件。

This International Standard specifies test methods and performance requirements for ensuring proper wheel or rim assembly on road vehicles by means of hexagonal nuts with a flat seating captive washer used with 18 mm, 20 mm and 22 mm studs. It is applicable to commercial vehicles as defined in ISO 3833 and to those nuts as specified in ISO 7575. It is not applicable to fasteners for less common or special applications.