A quenched and tempered carbon steel. Although class 8.8 is hardened, it is not as strong as class 10.9. It is often used in automobile applications. Class 8.8 is similar to grade 5.
Standard Specification : BS 3692
Material: Carbon Steel quenched and tempered
Dimensions: Normal Hex
Carbon: 0.25 – 0.55
Grade 8.8 Hex Bolt Tech Info
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