1Pcs,304 Stainless Steel Tension Spring,Wire Diameter 3.5mm,Outer Diameter 25mm,Length 100mm,S-shaped Hook,Corrosion and Rust Resistant

Made of high-quality 304 stainless steel, it has excellent rust and corrosion resistance and is suitable for humid environments, outdoor applications and mild chemical situations. Its service life is far longer than that of ordinary spring steel. Both ends are equipped with sturdy S-shaped hooks as standard, making installation simple and flexible. They can be easily connected to holes, screws or other springs, providing multi-angle connection solutions and reducing the need for installation tools. The wire diameter, outer diameter and number of turns of the tension spring are highly consistent, providing predictable tensile force and reliable elastic recovery performance. The spring has undergone stress relief and pre-stretching and tempering processes to effectively prevent tension loss in the early stages of use and maintain stable tension output during repeated stretching cycles. Universal size design, suitable for repair, replacement or upgrade of garage doors, industrial equipment, fitness equipment, agricultural machinery, furniture accessories and other equipment. It is a common accessory in workshops and homes.