標準號：ASME B1.1-2003
中文標準名稱：統一標準英制螺紋(UN和UNR螺紋牙型)
英文標準名稱：Unified Inch Screw Threads, UN and UNR Thread Form
標準類型：J04
發布日期：2003/1/1 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：J04
國際標準分類號：21.040.20
引用標準：ASME B1.2;ASME B1.3;ASME B1.7;ASME B1.30;ASME B47.1;ASME B94.11;ASME Y14.5;ISO 68
適用范圍：This Standard specifies the thread form, series, class,allowance, tolerance, and designation for unified screwthreads. (In order to emphasize that unified screwthreads are based on inch modules, they may be denotedunified inch screw threads.) Several variations in threadform have been developed for unified threads; however,this Standard covers only UN and UNR thread forms.For easy reference, a metric translation of this Standardhas been incorporated as Nonmandatory AppendixC. Nonmandatory Appendices A through E containuseful information that is supplementary to the sectionsof this Standard.