Plastic Spool Pin Press in - Singer Part # 172007

These two press-in style plastic spool pin has a diameter of 4.6mm and a length of 44.6mm.

For Singers Models 327, 328, 329, 337, 338, 347, 348, 401A, 403A, 404, 413K, 413K13, 416K, 418, 457, 466, 476, 477, 478, 502, 507, 509, 513, 514, 518, 522, 527, 533, 534, 538, 543, 6513 - 6548