New replacement needle clamp screw.
Fits Singer models: 1022, 327, 328, 329, 337, 338, 347, 348, 413, 413k, 413k13, 416, 416k, 418, 457, 466, 476, 477, 478, 502, 507, 509, 513, 514, 518, 522, 527, 530, 533, 534, 538, 560 series, 6513, 6548, 800 series, 830, 860 series, 935U