Bolt Base 8mm A2 Stainless Steel Nylon Insert Nyloc Nylock Lock Nuts M8 X 1.25mm Pitch - 75 Corrosion Resistant A2-70 Stainless Steel Nyloc Lock Nuts- DIN 985 8mm Metric Thread, M8 - 1.25mm Pitch Spanner/ Wrench Size- 13mm Not Suitable For Replacing High Tensile Fasteners