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Lag bolts are large wood screws with hexagonal heads often called a lag screw.
An alloy of steel with high corrosion resistance.
A low carbon steel for general use. Zinc plated for moderate corrosion resistance.
A low carbon steel for general use. Hot dipped galvanized (A153) for very good corrosion resistance.
Solid bronze. An alloy of copper with greater strength and corrosion resistance than brass.
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