Tag Archives: coupling nuts

Coupling Nut Thread Engagement

How much coupling nut thread engagement is required to achieve the strength of the rod?

Unfortunately there appears to be no documented information on how much rod engagement into a coupling nut is required to achieve the strength of the rod or bolt being used with it. Coupling nuts are manufactured to the same ASTM specifications as regular hex nuts, and ASME B18.2.2 provides dimensional specifications for coupling nuts.  Standard coupling... Read more