FMSI > Brake System > Hardware > Tube Nuts > Metric & Imperial Bubble Flare Tube Nuts > Item # 3447 FMSIFMSI Brake SystemBrake System HardwareHardware Tube NutsTube Nuts Metric & Imperial Bubble Flare Tube NutsMetric & Imperial Bubble Flare Tube Nuts Item # 3447 Item # 3447, 1/4" x 12mm x 1.75 Steel Bubble Flare Tube Nut 34471/4" x 12mm x 1.75 Steel Bubble Flare Tube Nut Request Information Email This Page Download PDF Download PDF Printable Page Close Window - For 1/4" tube- Bubble flare with 12mm x 1.75 thread- 13mm hex head Unit of Measure Imperial Metric Both Specifications Tube Size N/A 1/4 in Thread Diameter N/A 12 mm Thread Pitch N/A 1.75 mm Hex Size N/A 13 mm Color N/A Yellow Style N/A European / Domestic AGS N/A - Packaging N/A SP(10) SP(2) Package Type N/A Barrel Units Per Package N/A 1