304 Stainless Steel Inside Outside Thread Adapter Screw Nuts Insert Sleeve Converter Nut Coupler M2 M2.5 M3 M4 M5 M6 M8 M10-M20Home Improvement > Hardware2,25 USD (≈ 2,01 €)2,78 USDDisponibileSold by AliExpress WWVai al negozio