M11 Plough Bolts/Nuts DIN-608 M11 Plough Bolts/Nuts DIN 608 M11 x 55 Plough Bolt/Nut Grade 8.8 M11/3711 – M11 x 55 8.8 Enquire M11 x 80 Plough Bolt/Nut Grade 8.8 M11/2973 – M11 x 80 8.8 Enquire