
Bosswinn Tension Springs Precision, Strength and Reliability for Every Application. Premium Material Options: Crafted from high-tensile ASTM A228 carbon steel or SUS304 stainless steel for superior elasticity. Customizable Dimensions: Free length customizable from 80mm to 250mm; wire diameter from 2.5mm to 4.0mm. Durable Dual Hook Design: Symmetrical metal hooks ensure secure attachment and resist deformation under dynamic loads. Extended Fatigue Life: Designed to withstand over 10,000 extension cycles under normal usage conditions. Custom Hook Shapes: Available in closed-loop, German hook, side hook, or custom bent shapes upon request. Advanced Surface Finishing: Options include zinc plating, powder coating, black oxide, or raw steel for corrosion resistance. Noise Reduction Capability: Custom rubber sleeves or plastic spacers can be added to minimize squeaking during operation. OEM/ODM Services: Full customization available from samples, designs, or specific engineering requirements.