M3 Threaded Steel Balls Anti Loosening Steel Metal Balls For Industrial / DIY / Decor
The M3 threaded carbon steel ball is a carbon steel sphere integrated with internal M3 threads. It combines the flexible adaptability of the spherical structure with the secure locking of M3 threaded connections, making it ideal for mechanical assemblies, electronic equipment, DIY projects, and decorative fittings.
| Thread Specification | M3 thread (pitch 0.5mm) |
|---|---|
| Processing Precision | High-precision thread machining ensures tight engagement with M3 external threaded parts; strict control over sphere roundness (≤0.02mm) and surface roughness (Ra≤1.6μm) guarantees stable assembly |
- Carbon Steel: Moderate hardness (HB 180-220), good ductility, and cost-effectiveness, suitable for light to medium mechanical load scenarios
- Precision Threading: Internal M3 threads machined using CNC equipment with complete thread profiles and consistent pitch
- Surface Treatment: Standard polishing for smooth finish and basic anti-rust performance; optional zinc plating or black oxide coating available
- Detail Control: Uniform machining marks and minimal assembly gaps ensure batch consistency
Connectors in small rotating mechanisms, auxiliary fasteners in electronic enclosures and precision instrument brackets
Core components for mechanical models and structural prototypes, decorative elements in custom furniture
Fixing parts for sensor mounts and small circuit board brackets with stable positioning
Precise M3 thread machining ensures firm locking, reducing vibration-induced loosening
Carbon steel offers good toughness and wear resistance for daily use environments
Affordable carbon steel material ideal for mass production and DIY enthusiasts
M3 thread size compatible with numerous standard bolts, nuts, and threaded rods
Supports customization of sphere diameter (8mm-20mm), surface finish, and thread length
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