What types of bolts are commonly used in construction?

The most commonly used types of bolts in construction include hex bolts, carriage bolts, and anchor bolts. Hex bolts are widely utilized due to their robust design and six-sided head, allowing them to be easily tightened with a wrench. They are often employed in structural applications where strength and reliability are crucial.

Carriage bolts feature a rounded head and a square neck that locks into place when installed. They are especially useful in connecting metal to wood, which makes them a popular choice in various construction scenarios, particularly for securing metal brackets to timber.

Anchor bolts are critical for providing stability and securing structural elements to concrete or masonry. They are embedded in concrete and offer a means to attach other structural components, thereby playing a vital role in the overall integrity of a building.

The other options include types of screws and screws generally are not categorized as bolts. They serve different purposes in construction and are typically used for fastening materials in ways that do not require the same level of strength or support that bolts provide.