What is the most common material used for anchor bolts?

Steel is the most common material used for anchor bolts due to its exceptional strength and durability. Anchor bolts are typically used to secure structures and components to concrete foundations, ensuring stability and resistance against external forces such as wind and seismic activity. Steel provides the necessary tensile strength to withstand these loads while also being resistant to bending and deformation.

Other materials like plastic, aluminum, and wood do not offer the same level of performance for such applications. Plastic lacks the structural integrity needed for heavy loads, aluminum, while lightweight and resistant to corrosion, typically does not have the strength required for load-bearing applications like anchor bolts, and wood is not suitable as it can degrade over time and also lacks the necessary tensile properties. Thus, steel remains the preferred choice for anchor bolts in construction and structural applications.