Boxed Black Carbon Steel E-Clip Assortment M1.5-M15. Standard kits are in ready stock for fast shipment, with customizable non-standard thickness, aperture and packaging for Custom Boxed Fasteners. Stamped from high-toughness black carbon steel, these E-clips feature stable elasticity, reliable hardness and outstanding anti-drop & anti-vibration positioning performance with strong deformation resistance. Neatly classified in standard boxes for easy inventory management and assembly access, these universal precision Boxed Fasteners are widely used for shaft limiting and fixing in mechanical equipment, hardware parts and home appliance transmission components.