Strong Bearing Capacity The expansion bolts have very strong bearing capacity, concrete anchor and masonry anchor, easy to mount. Work well in humid indoor and outdoor environment. Size 6pcs M8x80mm Hex Nut Expansion Bolt, Total Length: 80mm, expansion tube diameter: 55mm, expansion tube diameter: 11.3mm.thread Diameter: 7.5mm Wide application range of anchor fixing anchor fixing Suitable for water heater installation, fixed air conditioner, home decoration, industrial engineering, air conditioning fixing , fences, security doors and windows, can be used in concrete and masonry. High quality material Stainless steel screw bolts is made of 304 stainless steel, sturdy and firm, rust and water proof, corrosion resistant, never rust and durable. Quantity: 6 pieces Note: It does not include other things, the color is based on the first picture, and the other pictures only show the effect due to the differences between different monitors, the picture may not reflect the actual color of the item. . due to manual measurement. Please allow deviation. THANKS!