Expanding wall anchors are specialized fasteners designed to provide a secure point for attaching items to walls, especially where there may not be a stud available for traditional nailing or screwing methods. These anchors work by expanding against the sides of the wall material as they are tightened, creating a holding force that distributes the weight of the object being hung.

One of the most prominent features of the 7% 2016 self-drilling screw is its efficient design. The screw's drill point is engineered to penetrate metal sheets and other materials with ease. The 7% design typically refers to the thread pitch and size, which ensures a superior grip and locking mechanism. This makes the fasteners particularly effective in holding tight under various conditions.

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.

3. Sleeve Anchors These are similar to masonry anchors but are often used in conjunction with non-masonry materials. They have a sleeve that expands against the wall material when the screw is tightened, making them versatile for various applications.