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  1. MC Connectors requiring locknuts???

    NEC Code Forum
    I heard a rumor that there may be an upcoming IBC code that requires locknuts on all MC connectors/fittings... It's supposed to have something to do with recent siesmic shake tests.... this would (in CA) no allow use of Arlington Industires Snap Connectors (38AST, 40AST etc..) Can anyone...