Eye bolt size: metric thread diameter M5 with 0.45"（12mm） thread length for versatile compatibility. Included (12 sets total) : you will get 12 pcs of Eye bolts, 12 pcs of hex nuts, 12 pcs of flat washers and 12 pcs of spring washers, Complete Hardware Set for immediate use. Material & Durability: Made of high-quality 304 stainless steel material, corrosion-resistant, sturdy construction, reliable performance, and outstanding strength. Easy to Install: Simply thread the bolt into a pre-drilled hole or fixture and secure with the included nuts and washers. Wide range of applications: Eye bolts play the role of connection and fixing, which is very suitable for hanging string lights, decorations and lighting fixtures. It can be seamlessly used as a clothesline, wire rope, or chainlink fence hanger. 1