Which fastener is typically used for joining two pieces of wood at an angle?

Lag screws are specifically designed for joining two pieces of wood at an angle due to their large diameter and the ability to create a strong, secure connection. Their design allows them to withstand significant loads, making them ideal for applications where structural integrity is essential, such as in framing or constructing heavy furniture. Lag screws also feature a hexagonal head for easy tightening with a wrench, providing a strong grip and preventing the screws from loosening over time.

Other fasteners may not be suitable for this application; for example, brads are typically used for lighter fastening tasks where a smaller fastener is adequate, while countersunk screws are designed for a flush finish and may not provide the same level of strength when joining wood at an angle. Collated nails are often used for quick assembly in framing but may not offer the same holding power in angled joints as lag screws do. Thus, lag screws are the preferred choice for ensuring a robust connection in angled applications.