Metric tap bolts, 65mm
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Material and Type
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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. A corrosion resistant steel alloy.
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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. More expensive than 18-8. A corrosion resistant steel alloy.
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Zinc plated class 8.8 steel
A low carbon steel for general use. Zinc plated for moderate corrosion resistance. A tempered medium carbon steel. Class 8.8 is hardened, but it is not as strong as class 10.9. It is commonly found in automotive applications. Class 8.8 is similar to grade 5.
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Class 10.9 steel plain finish
A low carbon steel for general use. 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.
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