The screws are made of 304 stainless steel, which are water-resistant and durable. 【What You Get】The hanging hooks consist of 4 wall brackets, 8 drywall anchors and 8 screws. 【Easy Installation】With sturdy, well-made fittings, no drilling, no welding, just a screwdriver to fit your jack stands perfectly, it's easy to install and remove, safe and worry-free.