FMSI > Brake System > Hardware > Tube Nuts > Standard Steel Invert Flare Tube Nuts > Item # 3016 FMSIFMSI Brake SystemBrake System HardwareHardware Tube NutsTube Nuts Standard Steel Invert Flare Tube Nuts Standard Steel Invert Flare Tube Nuts Item # 3016 Item # 3016, 1/2" x 3/4" - 18 Standard Steel Invert Flare Tube Nut 30161/2" x 3/4" - 18 Standard Steel Invert Flare Tube Nut Request Information Email This Page Download PDF Download PDF Printable Page Close Window - For 1/2" tube - Invert flare with 3/4" - 18 thread- 3/4" hex head Unit of Measure Imperial Metric Both Specifications Tube Size N/A 1/2 in Thread Diameter N/A 3/4 in Threads per Inch N/A 18 T.P.I Hex Size N/A 3/4 in Packaging N/A SP(10) HP(5) Package Type N/A Barrel Units Per Package N/A 1