Model M8 eyebolt total length 93.5 mm, thread length 55 mm, ring inner diameter 12.5 mm (product dimension in millimeters, 1 mm = 0.0393701 inch) 304 stainless steel, high hardness, corrosion-resistant, can be used in humid environments, and is rust-resistant. Product advantages: 304 stainless steel rings, durable and rust-resistant stainless steel. Manufactured by an extra-large machine. After many experiments, it has been proven that the exterior does not oxidize or rust. Product features: For home, office, hotel, and other places, for fixing and hanging. Can be screwed into wood or masonry with a suitable dowel. Suitable for light applications.