Standards are used to help identify threads and end connections. We will use the following definitions in this manual:
Thread Standard
A specific reference to a formal standard (for example, ASME B1.1, EN 10226-1, or ISO 261) that describes thread form, including a thread’s angle, pitch, and diameter.
End Connection Standard
A specific reference to a national standard (such as DIN 3852 or JIS R and JIS Rc) or industry group standard (such as SAE J512) that describes an end connection’s components, seal area, geometry, and nominal sizes. Thread standards are usually referenced in the end connection standard.
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Thread and End Connection Guide.pdf (702.9 KB)
Basics of Thread.pdf (1.2 MB)