Foundation Bolt Grade 8.8
A Foundation Bolt Grade 8.8 is a high-strength steel bolt commonly used to anchor heavy machinery, steel structures, and equipment to concrete foundations. The “8.8” grade refers to its mechanical strength — it’s made from medium carbon steel that’s been quenched and tempered to provide both high tensile strength and good toughness.
In simple terms, this means the bolt is strong, durable, and reliable, capable of handling heavy loads and resisting deformation under stress. It’s often used in construction, industrial plants, bridges, and infrastructure projects where safety and stability are critical.
Typical properties:
Material: Medium carbon steel (heat-treated)
Tensile Strength: Around 800 MPa
Yield Strength: Around 640 MPa (80% of tensile strength)
Finish: Can be plain, zinc-plated, or hot-dip galvanized for corrosion resistance
Shapes: Available in L-type, J-type, or straight with plate/anchor head depending on installation needs
In essence, a Grade 8.8 foundation bolt is the strong, dependable connection between a structure and its foundation — built to keep everything firmly in place, even under heavy vibration or load.
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