Metal Zip Ties black epoxy coating process, high temperature resistance, cold resistance, rust and corrosion resistance,Stainless steel is anti-oxidation, anti-ultraviolet, easy to operate, sturdy and Durable 04 stainless steel epoxy coating Our Metal zip ties max supporting weight is 198 lbs Operation Temperature -170~+500 Max bundle diameter is 90mm 3.5inch Self-locking design Metal zip ties only need to be tightened with sharp-nosed pliers and the excess can be cut off with diagonal pliers or tin scissors, which allows you to complete the project efficiently. This multifunctional cable zip ties are widely used in machinery, vehicles, , farms, cables, pipes, roofs, basements as well as Outdoor binding perfect for use in harsh outdoor environments as well