304 Stainless Steel External Tooth Lock Washers Serrated Anti Loosening Locking Washer M2 M3 M4 M5 M6 M8 M10 M12 M16 M20 M30Home Improvement > Hardware6,23 USD (≈ 5,58 €)6,77 USDDisponibileSold by AliExpress WWVai al negozio