1pc Wire Diameter 3mm High Carbon Steel Extension Return Springs with Hook, Outer Diameter 30mm, Length 170mm(70-400mm), 3x30x170mm(1pc)

Size: Wire diameter 3mm, outer diameter 30mm, total length including hook 170mm Material: Made of 65Mn carbon steel, high load-bearing capacity, strong toughness, strong fatigue resistance, high elastic limit, high yield strength Design: The S-shaped hook design facilitates quick connection of equipment or brackets, suitable for space-constrained scenes, and the hook bending angle is optimized to provide a stable lock Features: The spring pitch is uniform, providing uniform tensile force, avoiding local stress concentration, reducing local metal fatigue, reducing deformation risk, and extending service life Application: Industrial machinery and manufacturing equipment, automobiles, motorcycles, electronic equipment, precision instruments, furniture, home appliances, fitness equipment, agricultural machinery, hardware, toys, etc.