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Steel Interchange


What is a snug-tightened connection?
What is a snug-tightened connection?

Answer
Section 8.1 of the RCSC Specification (a free download at www.boltcouncil.org) describes snug-tightened joints as follows:

“The snug-tightened condition is the tightness that is attained with a few impacts of an impact wrench or the full effort of an ironworker using an ordinary spud wrench to bring the connected plies into firm contact.”

The definition of firm contact is given in the Glossary of the RCSC Specification as follows:

Firm Contact: The condition that exists on a faying surface when the plies are solidly seated against each other, but not necessarily in continuous contact.

Kurt Gustafson, S.E., P.E.

Posted on August 1, 2010


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