Used needle clamp with thread guide from Singer 756 and 640E machines but should function on other machines. Compatible with Singer Sewing Machine Models:
401, 403, 404, 417, 500, 503, 600, 603, 604, 620, 620E, 625, 626, 628, 629, 630, 630E, 635, 636, 638, 639, 640E, 645, 646, 648, 649, 714, 717 School, 719, 724, 734, 737, 750, 755, 756, 758, 770, 774, 775, 776, 778, 900-3, 920, 920-3, 925, 1030, 1036, 1060, 2000, 2001, 2005, 2010, 6704 & 6705.

Works or your money back.