钢制螺母的机械和材料要求

[中文适用范围]： 本SAE标准涵盖了适用于汽车及相关工程应用的三种等级钢制螺母的机械和材料要求，尺寸范围为1/4至1-1/2英寸，尺寸符合最新版SAE J482或ASME B18.2.2的要求，但不包括机器螺钉螺母。 本文件不包括表面缺陷的限制。如果使用需要此类控制，可以单独指定限制。对于1/4至1英寸的尺寸，可以通过声明“表面缺陷不得超过ASTM F812/F812M中规定的限制”来实现。 [外文原描述]： This SAE Standard covers the mechanical and material requirements for three grades of steel nuts suitable for use in automotive and related engineering applications, in sizes 1/4 to 1-1/2 inches, inclusive, and with dimensions conforming with the requirements of the latest issue of SAE J482 or ASME B18.2.2, except for machine screw nuts which are not covered in this standard.This document does not include limits for surface discontinuities. Where usage requires such control, limits may be specified separately. For sizes 1/4 through 1 inch, this may be done by the statement: “Surface discontinuities shall not exceed the limits specified in ASTM F812/F812M.”Cross Reference: ASMEB18.18,ASMEB18.2.2,ASTM F 812,ASTM F 812M,ASTMF1470,ASTMF606,ASTMF812/F812M,J409_202107,J417_201801,J482_201304,J482_201611