While not fasteners in the traditional sense, washers are often used in conjunction with bolts, nuts, and screws to improve their performance. Washers distribute the load of the fastener over a larger surface area, helping to prevent damage to the material being fastened and reducing the risk of loosening due to vibration. There are several types of washers, including flat washers, lock washers, and fender washers, each serving specific functions in various applications.

5. Improved Alignment Accurate alignment of formwork is critical for achieving the desired dimensions and flat surfaces in concrete structures. Wedge bolts help to maintain this alignment, providing a straight and stable framework for the concrete. This is essential for ensuring the quality and aesthetics of the finished concrete surfaces.