[elecena] M12X20/4762/10BL - zmiany ceny Śruba; M12; M12x20; Łeb: walcowy; imbus; HEX 10mm; stal; brak M12X20/4762/10BL - 0.52 PLN https://elecena.pl/product/29836742/m12x20-4762-10bl 2026-02-17 M12X20/4762/10BL - 1.05 PLN https://elecena.pl/product/29836742/m12x20-4762-10bl 2026-03-20