170Pcs 304 Stainless Steel Hexagon Nylon Insert Lock Nut Set Hex Self Locking Assortment Kit Fastening M3 M4 M6 M8 M10 M12 DIYHome Improvement > Hardware19,22 USD (≈ 17,19 €)39,23 USDDisponibileSold by AliExpress WWVai al negozio