Metric flange nuts, prevailing torque

Material

• Zinc plated class 10.9 steel

  A tempered medium carbon steel. Class 10.9 is stronger than class 8.8, and is commonly found in high strength automotive applications. Class 10.9 is similar to grade 8. Zinc plated for moderate corrosion resistance.

• Class 10.9 steel plain finish

  A tempered medium carbon steel. Class 10.9 is stronger than class 8.8, and is commonly found in high strength automotive applications. Class 10.9 is similar to grade 8. Unplated finish.