M2 M2.5 M3 M4 M5 M6 M8 M10 M12 304 Stainless Steel Hexagonal Concave Convex Surface Headless Bolt Stop ScrewHome Improvement > Hardware0,69 USD (≈ 0,57 CHF)0,96 USDDisponibileSold by AliExpress WWVai al negozio