標準號：SAE J 122-1998
中文標準名稱：螺母表面不連續性
英文標準名稱：Surface Discontinuities on Nuts
標準類型：J13
發布日期：1998/5/1 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：J13
國際標準分類號：21.060.20
引用標準：ASTM A 194/A 194M-1998
適用范圍：This SAE Recommended Practice defines, illustrates, and specifies allowable limits for the various types of surface discontinuities that may occur during the manufacture and processing of metric-series nuts, in sizes 6.3 to 25 mm and inch-series nuts in sizes 1/4 to 1 in., inclusive, which are primarily intended for use in automotive assemblies. The basic recommended practice does not include inspection sampling requirements. It is intended that the purchaser shall specify in the original inquiry and purchase order the inspection sampling requirements which the producer must satisfy to demonstrate the acceptability of nuts with respect to surface discontinuities. Appendix A outlines inspection sampling plans applicable when such requirements are not specified by the purchaser in the original inquiry and purchase order.