The needle clamps for the screws are compatible with the following machine models. There may be models not listed:
Suitable for Singer TA11034000, Europro13520, 8260, 8260L, Bernette H70, Juki K85.

For Husqvarna Viking sewing machines E10 Huskystar, E20 Huskystar, 100Q HiClass.

Suitable for EverSewn sewing machines Sparrow 15, Sparrow 20, Sparrow 25, Sparrow 30.

Suitable for Singer sewing machines 1105, 1107, 1116, 1120, 1130, 1408 Prelude, 1408 Promise, 1409 Promise, 1507, 1512, 1525, 1725, 1732, 1748, 2010 (2009 version), 2010 Professional, 2010, 2010 Superb, 2263, 2273, 2277 Traditional, 2282, 2932, 3116 Simple, 3221 Simple, 3223, 3229, 3321, 3323 Talent, 3333, 3342 Fashion Mate, 44S, 4411 Heavy Duty, 4423 Heavy Duty, 4452, 4452, 5523, 5532 Heavy Duty, 5554, 7640 Confidence, 8275, 8280, 85SCH, 8770 Curvy, 9100, 9340, ET-1, H74.