FMSI > Tube Nuts > Oversize Steel Invert Flare Tube Nuts > Item # 3494 FMSIFMSI Tube NutsTube Nuts Oversize Steel Invert Flare Tube NutsOversize Steel Invert Flare Tube Nuts Item # 3494 Item # 3494, 3/16" x 1/2” - 20 Steel Invert Flare Tube Nut (Long) 34943/16" x 1/2” - 20 Steel Invert Flare Tube Nut (Long) Request Information Email This Page Download PDF Download PDF Printable Page Downloads FE The Officail Guide Book -TUBE NUTS - Ver2.pdf /Asset/3494.png /Asset/3494.png Close Window Unit of Measure Imperial Metric Both Specifications Tube Size N/A 3/16 in Thread Diameter N/A 1/2 in Threads per Inch N/A 20 T.P.I Hex Size N/A 9/16 in Color N/A Black AGS N/A - Packaging N/A SP(10) HP(2) Package Type N/A Barrel Units Per Package N/A 1