Hexagon Socket Head Male Connector, Tube Size 4mm, Thread x Tube Connection, Material of Construction Polybutylene Terephthalate, Thread Size M5x 0.8, Hex Size 2mm, Max. Pressure (PSI) 145, Temp. Range 23 to 140 Degrees F, Standards ROHS. This item has been restricted from sale in the following state (s): []