Spring Steel Dual Hook Extension Spring 2mm

Specified dimensions: 2 mm wire diameter, 11 mm outer diameter, 35 mm free length. Made from cold-drawn spring steel. Cold drawing enhances tensile strength and surface uniformity compared to hot-rolled equivalents — contributing to smoother coil formation and improved fatigue resistance. Each spring undergoes dimensional verification post-coiling to ensure compliance with stated specs. The dual hooks are stress-relieved after forming to minimise residual strain, supporting consistent performance across repeated duty cycles. No plating or coating is applied, preserving native friction characteristics useful for grip-sensitive mounting scenarios. Frequently selected for precision-critical roles: return springs in medical device triggers, tension control in laboratory clamps, calibration assistance in test fixtures, and motion control in educational robotics kits — where predictable mechanical response outweighs aesthetic considerations.