uxcell 5 Pcs PT 3/8 Brass Male Threaded Hex Socket Head Pipe Connector Fitting Product Name : Hex Head Pipe Connector;Color : Gold Tone Material : Brass;Thread Diameter : 16mm Hex Side to Side Diatance : 8.25mm/ 0.324";High : 9mm/ 0.35" Net Weight : 48g Package Content : 5 x Hex Head Pipe Connector