標準號：ANSI/ASME B18.3.1M-1986
中文標準名稱：米制系列內(nèi)六角螺釘
英文標準名稱：Screws, Socket Head Cap (Metric Series)
標準類型：J13
發(fā)布日期：1986/1/1 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：21.060.10
適用范圍：Contains complete general and dimensional data for metric series hexagon socket head cap screws in sizes from 1.6 mm to 48 mm and for metric series spline socket head cap screw in sizes from 1.6 mm to 8 mm recognized as American National Standard. Also included are appendices covering drill and counterbore sizes (Appendix I), drilled head dimensions (Appendix II), formulas for dimensions (Appendix III), ISO dimensional variations (Appendix IV), part numbering system and preferred sizes for government use (Appendix V), and thread dimensions (Appendix VI).