ASME B1.7: Revision of ANSI B1.7M-1984
SDO: ASME: ASME International
DOD Adopted ANSI Approved Approved
The purpose of this Standard is to establish a uniform practice for standard screw threads with regard to the following:
(a) screw thread nomenclature
(b) letter symbols for the designating features of a screw thread for use on drawings, in tables that set forth dimensional standards, in other records, and for expressing mathematical relationship
This Standard consists of: a glossary of terms, illustrations, an illustrated table showing the application of symbols, and a table of thread series designations. Many of the terms and symbols specified in this Standard vary considerably from those prior to the 1984 issue, because ISO terms and symbols have been adopted where the intended definition is the same.
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