The M3 threaded carbon steel ball is a carbon steel sphere integrated with internal M3 threads. It merges the flexible adaptability of the spherical structure with the secure locking of M3 threaded connections, finding extensive use in mechanical assemblies, electronic equipment, DIY projects, and decorative fittings, offering both practicality and versatility.

• Carbon Steel: Features moderate hardness (HB 180-220), good ductility, and cost-effectiveness, suitable for light to medium mechanical load scenarios (e.g., small component connections, structural supports).

• Precision Threading: Internal M3 threads are machined using CNC equipment, with complete thread profiles and consistent pitch, effectively preventing thread stripping or loosening.
• Surface Treatment: Standard polishing achieves a smooth finish, enhancing appearance and providing basic anti-rust performance; optional treatments like zinc plating or black oxide coating are available for improved corrosion resistance in humid environments.
• Detail Control: Uniform machining marks and minimal assembly gaps ensure batch consistency, reflecting fine manufacturing standards.

• Used as connectors in small rotating mechanisms (e.g., micro motor shafts, miniaturized linkage components), utilizing the spherical shape for multi-angle adjustment.
• Auxiliary fasteners in electronic enclosures and precision instrument brackets, ensuring secure and flexible connections.

• Core components for handmade mechanical models and structural prototypes, compatible with common M3 bolts and studs.
• Decorative elements in custom furniture and creative installations, combining functionality with aesthetic appeal.

• Fixing parts for sensor mounts and small circuit board brackets, providing stable positioning with M3 threaded connections.

• Secure Thread Engagement: Precise M3 thread machining ensures firm locking with external threads, reducing vibration-induced loosening.
• Balanced Performance: Carbon steel offers good toughness and wear resistance, adapting to daily use environments with mild friction and temperature variations.
• Cost-Effective Solution: Affordable carbon steel material meets general application needs, ideal for mass production and DIY enthusiasts.
• Versatile Compatibility: M3 is a widely used thread size, compatible with numerous standard bolts, nuts, and threaded rods, simplifying assembly.
• Customizable Options: Supports customization of sphere diameter (common sizes: 8mm-20mm), surface finish (polished, plated), and thread length to fit specific requirements.