Metric hex bolts, Class 8.8, 55mm

Hex bolts have hexagonal heads and machine threads for use with a nut or in a tapped hole. Also known as hex cap screws or machine bolts.

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Metric hex bolts, Class 8.8, 55mm
Hex bolts A bolt with a six sided head. Zinc plated class 8.8 steel 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. Show Details Hide Details	Tap bolts A full thread bolt with a six sided head. Zinc plated class 8.8 steel 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. Show Details Hide Details