What is typically used to secure outlet boxes to finished surfaces in older work?

In older residential electrical work, outlet boxes are often secured to finished surfaces using brackets that swing out or snap into place. This method facilitates a secure mounting of the outlet box while accommodating various wall thicknesses and materials. The brackets provide a firm grip, which ensures that the outlet box remains stable when outlets or devices are plugged in and out frequently, thus reducing wear and potential electrical hazards.

The use of brackets is particularly beneficial in older installations where space and the method of wall construction might differ from modern standards. By using brackets that snap or swing into place, electricians could quickly adjust the box during installation without the complexity of measuring and aligning screws, making it a practical choice for seasoned builders.

Other methods such as adhesive mounts or plastic anchors are less common for securing outlet boxes due to limited load-bearing capacity or potential long-term stability issues. Metal screws could also be used, but they may not provide the same level of adaptability and ease of installation as the brackets designed for this purpose. Therefore, brackets that swing out or snap into place represent the traditional and widely used method for securing outlet boxes in older work.