ASME-B1.1 Complete Document History
Unified Inch Screw Threads, (UN and UNR Thread Form)

Complete Current Edition:
   2019 EDITION - PRE-ORDER - ESTIMATED DUE DATE: 7/24/2020 - July 1, 2020

Obsolete Revision Information:
   2003 EDITION - REAFFIRMED IN 2008 - Jan. 1, 2003
   1989 R01 EDITION - OBSOLETE REVISION LEVEL BY REQUEST - May 15, 1990