Specifications: M8 series, thread diameter 8mm, thread length 60mm, total length 95mm, Single weight: 36.7g, standard size. Material: 304 stainless steel. Widely used in various engineering cranes, metallurgical and mining equipment, port rail handling, power equipment, etc. Suitable for homes, offices, hotels and other places, the role of fixing and hanging, can be screwed into wood or masonry through a suitable wall socket fixing device. Product advantages: 304 stainless steel hook screw, durable, high hardness, anti-rust. Exquisitely made of super-large machinery, after many experiments proved that in the exterior will not be oxidized, rust, 1.3 times larger than ordinary steel traction. Note: Do not rub between the bolts to avoid damaging the threads