High Quality: Made of high quality stainless steel for installing rectangle shade sails, durable, rust-proof, sturdy and safe. M6 Set: Includes 4 wall brackets, 4 carabiners, 4 tension screws and 16 screws, suitable for all rectangular awnings. Practical: The awning fastener set is easy to use and perfect for most shade sails to hang your awning safely and easily. Perfect Tension: The tension screws ensure optimum tension for your awning. The shade sail mounting kit includes all the hardware needed to install a square or rectangular shade sail on a structure, mast or post. High load capacity, durable and sturdy, good corrosion resistance. The sunshade set is easy to use and fits most types of shade sails. Used outdoors, in courtyards, gardens, trees, walls, porches, backyards, cafes, and arbors.