FMSI > Tube Nuts > Metric & Imperial Bubble Flare Tube Nuts > Item # 3408 FMSIFMSI Tube NutsTube Nuts Metric & Imperial Bubble Flare Tube NutsMetric & Imperial Bubble Flare Tube Nuts Item # 3408 Item # 3408, 1/4" x 13mm x 1.50 Steel Bubble Flare Tube Nut 34081/4" x 13mm x 1.50 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/3408.png /Asset/3408.png Close Window - For 1/4" tube- Bubble flare with 13mm x 1.50 thread- 14mm hex head Unit of Measure Imperial Metric Both Specifications Tube Size N/A 1/4 in Thread Diameter N/A 13 mm Thread Pitch N/A 1.50 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