Bolts -

: These have a hexagonal head and are easily tightened with a wrench. They are the standard for construction, machinery, and automotive projects.

: Featuring a smooth, rounded head and a square neck to prevent rotation during installation, these are ideal for wood-to-wood or wood-to-metal projects like fencing and decking. : These have a hexagonal head and are

: Also known as stripper bolts, these have an unthreaded "shoulder" between the head and the threads, creating a pivot point for moving parts. Measuring and Sizing : These have a hexagonal head and are

: These heavy-duty bolts have coarse threads designed to screw directly into wood without a nut, providing high holding power for decks and heavy timber structures. : These have a hexagonal head and are