M3 M4 M5 M6 316L Stainless Steel A4-70 Outer Hexagon Bolts 35 40 50 60 70 80 90 100 150mm Length Long Hex Bolts Full ThreadHome Improvement > Hardware6,62 USD (≈ 5,93 €)9,60 USDDisponibileSold by AliExpress WWVai al negozio