Use With Electrical Oil Pressure And Temperature Gauges/ Mechanical Oil Pressure/ Boost Gauges/ Senders; Brass; With M10 x 1.0 To 1/8 Inch/ M12 x 1.0 To 1/8 Inch/ M12 x 1.75 To 1/8 Inch/ M14 x 1.5 To 1/8 Inch/ M16 x 1.5 To 1/8 Inch NPT Thread Fittings; Set Of 5