FMSI > Brake System > Hardware > Tube Nuts > Female Tube Nuts > Item # 41S-4 (Formerly 3429) FMSIFMSI Brake SystemBrake System HardwareHardware Tube NutsTube Nuts Female Tube NutsFemale Tube Nuts Item # 41S-4 (Formerly 3429) Item # 41S-4 (Formerly 3429), Female Tube Nuts 41S-4 (Formerly 3429)Female Tube Nuts Request Information Email This Page Download PDF Download PDF Printable Page Close Window Unit of Measure Imperial Metric Both Specifications Tube Size N/A 1/4 in Thread Diameter N/A 7/16 in Thread Pitch N/A 20 T.P.I Old FMSI No. N/A 3429 Edelmann # N/A 141040 Weatherhead # N/A 1110X4