Monster Features:

    Material: Zinc Plated Steel with CR+3 plating for corrosion resistance.
    Hardness Rating: Class 10.9 / Grade 8 with a 200 HV rating.
    Compliance:  specifications for flat washers.
    Sizes: Available in M10
    Quality: Providing a product we are proud to stand behind. Monster Bolts sells only the highest quality fasteners backed with industry-leading customer support! Quality product! Quality Support!

Monster Specifications:

    Type: Flat Washers
    Material: Zinc Plated Steel
    System of Measurement: Metric
Hardness: 200 HV (Class 10.9 / Grade 8)