8 8 grade bolts for communication towers

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8 Bolts: Specifications, Properties and StrengthThis guide gives a practical look at ISO 898-1 Class 8. Made from quenched and tempered medium carbon steel, they are the workhorse of structural and mechanical connections. ISO 898-1 specifies the mechanical properties of fasteners made from carbon steels and carbon alloy steels. Please note the bolt heads may also include the manufacturer's identification stamp, especially with high strength bolts.

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