ASME B18.13-2017 View larger

ASME B18.13-2017

M00000147

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ASME B18.13-2017 Screw and Washer Assemblies-Seams (Inch Series)

standard by ASME International, 01/23/2017

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This Standard covers general and dimensional datapertinent to the various types of screw and captivewasher assemblies, otherwise known as SEMS. SEMSproducts may include screws, tapping screws, or boltsin sizes No. 0 through 1/2 in. diameters in various gradesand materials. The word SEMS is recognized in theUnited States as a generic term applicable to screw andwasher assemblies. Also included in this Standard isNonmandatory Appendix A illustrating the relativeproportions of plain and conical washer SEMS.