全面定义强度等级不超过1250 MPa的花键和六角头螺栓的以下要求: a、 头部尺寸（见3.1）b.柄部尺寸（见3.2）c.几何控制（见3.3）d.表面纹理（见3.4） 本文件基于所有加工（包括涂层或电镀）完成后的一类螺纹:公差等级4h6h。 有关螺纹的详细信息，请参见AS1370。有关螺纹跳动和导程螺纹，请参见AS3062。

To fully define the following requirements for bolts with spline and hexagon heads of strength class up to, but not including, 1250 MPa: a. Head dimensions (see 3.1)b. Shank dimensions (see 3.2)c. Geometric control (see 3.3)d. Surface texture (see 3.4) This document is based on one class of thread after all processing, including coating or plating, has been completed as follows: tolerance class 4h6h. For particulars of thread, see AS1370. For thread runout and lead threads, see AS3062.