expansion anchor bolt

A hex washer head bolt is essentially a threaded rod with a hexagonal head, providing a larger surface area than a standard hex bolt. The integrated washer portion of the bolt serves two primary functions. Firstly, it distributes the clamping force over a wider area, preventing damage to the material being fastened and reducing the risk of loosening due to uneven pressure. Secondly, it increases the friction between the bolt and the surface, enhancing the holding power and ensuring a secure connection.

...

M16 concrete anchors are designed to secure various fixtures and structures to concrete surfaces. The M16 designation refers to the diameter of the anchor, which is approximately 16 millimeters, making it suitable for a wide range of applications that require a robust yet precise fastening solution. These anchors typically consist of high-quality materials such as stainless steel or hardened metals, ensuring durability and resistance to corrosion, even in harsh environments.

...

The primary advantage of self-drilling anchors lies in their efficiency. Traditional anchor installation methods often require multiple steps, including drilling, cleaning the hole, and inserting the anchor. In contrast, self-drilling anchors combine these functions into one, reducing time, labor, and overall project costs. This makes them particularly advantageous for projects where time is of the essence or where access to drilling equipment is limited.

...