Nylon Lock Nuts M2 M2.5 M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 304 Stainless Steel Hexagon Anti-Slip Automatic Lock Nut DIN985Home Improvement > Hardware$3.99 (≈ DKK 26.69)$4.34In stockSold by AliExpress WWTo Store