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ASME B18.13.1M-2011 (R2022)
Screw and Washer Assemblies: SEMS (Metric Series)
Summary
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 a generic term applicable to screw and washer assemblies.)
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01/01/2011
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