FMSI > Tube Nuts > Standard Steel Invert Flare Tube Nuts > Item # 121006 FMSIFMSI Tube NutsTube Nuts Standard Steel Invert Flare Tube Nuts Standard Steel Invert Flare Tube Nuts Item # 121006 Item # 121006, 3/8" x 5/8" - 18 Standard Steel Invert Flare Tube Nut 1210063/8" x 5/8" - 18 Standard Steel Invert Flare Tube Nut Request Information Email This Page Download PDF Download PDF Printable Page Downloads FE The Officail Guide Book -TUBE NUTS - Ver2.pdf /Asset/121006.jpg /Asset/121006.jpg Close Window - For 3/8" tube - Invert flare with 5/8" - 18 thread- 5/8" hex head Unit of Measure Imperial Metric Both Specifications Type N/A Standard Steel Nut Tube Size N/A 3/8 in Thread Diameter N/A 5/8 in Threads per Inch N/A 18 T.P.I Hex Size N/A 5/8 in Edelmann # N/A 121006 Weatherhead # N/A 105X6 AGS N/A BLF-15 Packaging N/A SP(10) HP(5) Package Type N/A Bag FMSI Part Number N/A 3015 Units Per Package N/A 5