FMSI > Tube Nuts > Metric & Imperial Bubble Flare Tube Nuts > Item # 3490 FMSIFMSI Tube NutsTube Nuts Metric & Imperial Bubble Flare Tube NutsMetric & Imperial Bubble Flare Tube Nuts Item # 3490 Item # 3490, 1/4" x 11mm x 1.0 Steel Bubble Flare Tube Nut 34901/4" x 11mm x 1.0 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/3490-red.png /Asset/3490-red.png Close Window - For 1/4" tube- Bubble flare with 11mm x 1.0 thread- 12mm hex head Unit of Measure Imperial Metric Both Specifications Tube Size N/A 1/4 in Thread Diameter N/A 11 mm Thread Pitch N/A 1.0 mm Hex Size N/A 12 mm Color N/A Violet 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