规定了具有机加工或轧制螺纹的全螺纹螺钉，螺纹节距为0.2 mm至6 mm，螺纹直径（粗螺纹）为1 mm至68 mm；本标准不适用于产品标准中有特殊要求的螺纹紧固件。

Specifies for fully threaded screws with machined, or rolled threads pitches of the thread ranging from 0,2 mm to 6 mm and thread diameters (coarse thread) ranging from 1 mm to 68 mm; it does not apply to those threaded fasteners where special requirements are laid down in the product standards.