FMSI > Tube Nuts > Metric & Imperial Bubble Flare Tube Nuts > Item # 3426 FMSIFMSI Tube NutsTube Nuts Metric & Imperial Bubble Flare Tube NutsMetric & Imperial Bubble Flare Tube Nuts Item # 3426 Item # 3426, 3/16" x 12mm x 1.25 Steel Bubble Flare Tube Nut 34263/16" x 12mm x 1.25 Steel Bubble 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/a1017.jpg /Asset/a1017.jpg Close Window - For 3/16" tube- Bubble flare with 12mm x 1.25 thread- 14mm hex head Unit of Measure Imperial Metric Both Specifications Tube Size N/A 3/16 in Thread Diameter N/A 12 mm Thread Pitch N/A 1.25 mm Hex Size N/A 14 mm Color N/A Olive Style N/A European / Domestic AGS N/A - Packaging N/A SP(10) HP(2) Package Type N/A Barrel Units Per Package N/A 1