Cord connectors resists most common industrial corrosive and provide effective pull-out protection in a lightweight design. They are ideal for any application where weight, conductivity or corrosion may be an issue. Made of nylon. Straight male cord connector body style. 3/8 inch NPT hub. -34 to 107°C operating temperature. 0.67 to 0.7 inch recommended knockout hole size. Suitable for use in hazardous locations per class I division 2, class II division 1 and 2, class III division 1 and 2 NEC reference 501-4 (b), 502-4 (a), 502-4 (b), 503-3 (a) and 503-3 (b).