Bolts

Common types of bolts include hex bolts (with a hexagonal head), carriage bolts (with a
domed head and a square shank), lag bolts (with wood threads for lumber), eye bolts (with a
ring for lifting or tying), and U-bolts (U-shaped for securing pipes or chains to
surfaces). Other types like flange bolts, socket head bolts, and shoulder bolts have
specialized heads or features for specific applications.