The ThreadClassEnumType enumerates values that describe a standard thread class or a thread tolerance class for the thread fit. Thread tolerance class enumerations are designated in ASME B1.1-2003, Section 4.1 and ISO 965-1. ISO external thread tolerance classes such as "3e" are implemented as "EXT_3E" in QIF.
<xs:simpleType name="ThreadClassEnumType"><xs:annotation><xs:documentation>The ThreadClassEnumType enumerates values that describe a standard thread class or a thread tolerance class for the thread fit. Thread tolerance class enumerations are designated in ASME B1.1-2003, Section 4.1 and ISO 965-1. ISO external thread tolerance classes such as "3e" are implemented as "EXT_3E" in QIF.</xs:documentation></xs:annotation><xs:restriction base="xs:NMTOKEN"><xs:enumeration value="1A"/><xs:enumeration value="1B"/><xs:enumeration value="2A"/><xs:enumeration value="2AG"/><xs:enumeration value="2B"/><xs:enumeration value="3A"/><xs:enumeration value="3B"/><xs:enumeration value="EXT_3E"/><xs:enumeration value="EXT_3F"/><xs:enumeration value="EXT_3G"/><xs:enumeration value="EXT_3H"/><xs:enumeration value="EXT_4E"/><xs:enumeration value="EXT_4F"/><xs:enumeration value="EXT_4G"/><xs:enumeration value="EXT_4H"/><xs:enumeration value="4G"/><xs:enumeration value="4H"/><xs:enumeration value="EXT_5E"/><xs:enumeration value="EXT_5F"/><xs:enumeration value="EXT_5G"/><xs:enumeration value="EXT_5H"/><xs:enumeration value="5G"/><xs:enumeration value="5H"/><xs:enumeration value="EXT_6E"/><xs:enumeration value="EXT_6F"/><xs:enumeration value="EXT_6G"/><xs:enumeration value="EXT_6H"/><xs:enumeration value="6G"/><xs:enumeration value="6H"/><xs:enumeration value="EXT_7E"/><xs:enumeration value="EXT_7F"/><xs:enumeration value="EXT_7G"/><xs:enumeration value="EXT_7H"/><xs:enumeration value="7G"/><xs:enumeration value="7H"/><xs:enumeration value="EXT_8E"/><xs:enumeration value="EXT_8F"/><xs:enumeration value="EXT_8G"/><xs:enumeration value="EXT_8H"/><xs:enumeration value="8G"/><xs:enumeration value="8H"/><xs:enumeration value="EXT_9E"/><xs:enumeration value="EXT_9F"/><xs:enumeration value="EXT_9G"/><xs:enumeration value="EXT_9H"/><xs:enumeration value="INT"/><xs:enumeration value="EXT"/><xs:enumeration value="SE"/><xs:enumeration value="G"/><xs:enumeration value="UNDEFINED"/></xs:restriction></xs:simpleType>