Features Uniform force, not easy to slip during rotation, more convenient installation. The product is smoothly and burr‑free, with high‑quality workmanship, fastness and durability. Entitled with pratical adoptability, its high quality can keep its high performance for a long time. 304 stainless steel, higher hardness than common materials, anti-corrosion, not easy to rust. Widely used in protective fences, anti‑theft doors and window, canopies, air‑conditioning outer frame fixing, home improvement, engineering, etc. Specification: Item Type: Expansion Bolts Material: 304 stainless steel Color: As Pictures Shown Total length: Approx. 80mm/3.5in Sleeve length: Approx. 55mm/2.2in Screw diameter: 8 mm/0.3in Hole size: 10mm/0.4in drill hole Weight: Approx. 406g/14.3oz Uses: widely used in fence, anti-theft doors and window, canopy, air conditioning frame fixing, home decoration, engineering and so on Package List: 10 x Expansion Bolts    Note: 1. Manual measurement, please allow a little error, thank you! 2. The picture may not reflect the actual color of the project due to the differences between different displays. Package List 10 x Expansion Bolts