Full Technical Description: Threaded Type; Steel Material; Electrogalvanized Chromate Treated Finish; Threaded Conduit Hub Used on; UL 1203, CSA C22.2 Approval; Class I Div 1 and 2 Group A B, Class II Div 1 Group E F G, Class II Div 2 Group F G, Class III Enclosure; 1/4 Inch Trade Size; Recessed Head Style; Constructional Feature Explosionproof, Dust Ignitionproof; Application Hazardous Location; Applicable Standard Nec/Cec; PLG Model