- Durable Construction: Made from high-quality 304 stainless steel, these expansion hooks are designed for longevity and reliability. The treated surface ensures resistance to moisture, making them suitable for wet environments. - Optimal Size: Each hook has a total length of approximately 40 mm (1.6 inches) and a screw diameter of about 8 mm (0.3 inches). This size allows for secure installation in various applications. - Strong Load Capacity: These heavy-duty concrete hooks feature an open cup design that enables strong load-bearing capabilities. Ideal for use in both concrete and masonry structures, they provide robust support for your hanging needs. - Versatile Applications: Perfect for indoor and outdoor use, these hooks can be utilized in garages, basements, gardens, and more. Whether hanging tools, decorations, or outdoor equipment, these hooks deliver dependable performance. - Effortless Installation: The M8 heavy-duty design features a clear internal bolt pattern and evenly spaced deep teeth, ensuring a secure grip on the wall. This design minimizes the risk of slipping or falling, facilitating easy and effective installation. - Practical Design: The built-in catch mechanism enhances convenience and stability during use, making these hooks not only practical but also easy to operate. Choose these 304 stainless steel expansion hooks for a reliable, durable, and versatile solution to your hanging needs.