✔️Thread Pitch：1mm ✔️Thread Length：70mm (excluding the head) ✔️Round Head Thickness：3.5mm ✔️Square Head Thickness：4mm ✔️Head Diameter：16mm ✔️Material：304 Stainless Steel ✔️✔️What we sell screws and bolts are made of 100% high-quality 304 stainless steel, which is superior to fasteners made of ordinary steel, carbon steel, and other materials. They have good strength and corrosion resistance in harsh environments.✔️✔️Please check out our store for other size,There are a variety of sizes available but they are not all listed.✔️✔️If you have any needs or are not satisfied, please feel free to contact me at any time, we will be happy to serve you.