Metric flat washers

Material

• Stainless steel 18-8 (A-2)

  Also known as A-2 stainless, 18-8 is the most common grade of stainless steel for general use.

• Stainless steel 316 (A-4)

  Also known as A-4 stainless, 316 is a highly corrosion resistant grade of stainless steel. Ideal in salt water and chlorine environments.

• 
  Stainless steel 17-4 PH

  A high strength stainless steel with strength properties similar to Grade 8 and corrosion resistance comparable to 18-8, suitable for use in temperatures up to 600° F. Commonly used in petrochemical and aerospace industries. Domestically produced.

• Zinc plated steel

  A low carbon steel for general use. Zinc plated for moderate corrosion resistance.

• Zinc plated class 10.9 steel

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

• Chrome plated steel

  A low carbon steel for general use. Chrome plated and polished for a mirror like finish.

• Nylon 6/6

  A general purpose nylon often used in fasteners for corrosion resistance.