Some sewing machines come with a shorter needle clamp screw and cannot be used with certain presser feet such as a walking foot, ruffler/pleating foot, free motion darning foot, knit foot, etc. This is because the arm of those feet must go over a needle clamp screw to make it operate properly.

Guaranteed to fit Brother Sewing Machine Models:
LS1217, LS1520, LS1717, LS2125, LS2220, LS2720, LS2725, LS2820, LS2825, LS2920, VX1120, VX1125, VX1140, VX1250, VX1435

Guaranteed to fit Kenmore Sewing Machine Models:
Most Models beginning with 158.

Guaranteed to fit Viking Sewing Machine Models:
6000 series