ASME B18.13 : 1996 : R2013
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
SCREW AND WASHER ASSEMBLIES - SEMS (INCH SERIES)
Hardcopy , PDF
24-08-2021
English
01-01-2013
(a) This Standard covers general and dimensional data pertinent to the various types of screw and captive washer assemblies, otherwise known as sems. The word sems is recognized in the United States as a generic term applicable to screw and washer assemblies. Also included in this Standard are appendices to illustrate the relative proportions of plain and conical washer sems and provide documentation on the washer dimensions for sems with screw types and head styles that have been relegated to "not recommended for new design" status. (b) This Standard does not duplicate the general and dimensional data pertaining to components of sems.
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