S-93020A102 M2.5 x 6 mm Coupling Nuts
Coupling Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior Corrosion Resistance: Black-oxide steel coating provides excellent protection against rust and wear in demanding industrial environments.
- Precision Thread Fit: Class 6H thread tolerance ensures reliable, vibration-resistant connections for consistent performance.
- High-Strength Coupling: Fully threaded design and coarse 0.45 mm pitch enable secure joining of threaded rods or components.
- Easy Installation: External hex drive allows for quick, tool-friendly assembly with standard metric wrenches.
- Compact & Lightweight: 4.5 mm width and 6 mm length offer space-saving solutions without compromising structural integrity.
- Environmental Compliance: RoHS 3 compliant, meeting strict regulatory standards for industrial use with exemption for lead in steel alloys.
- Versatile Metric Sizing: M2.5 metric threading ensures compatibility with international fastener systems and components.
Professional Applications & Engineering Value
This M2.5 black-oxide steel coupling nut is engineered to solve critical challenges in industrial assembly and precision engineering. Its fully threaded, coarse pitch design provides maximum grip and load distribution, preventing loosening under vibration in machinery, automotive, and electronics applications. The black-oxide finish enhances durability in humid or corrosive settings, while the Class 6H metric thread fit guarantees exact alignment for reliable coupling of rods, bolts, or shafts. Ideal for tight spaces due to its compact 6 mm length, it ensures long-term performance without frequent maintenance.
Specification Summary & Compliance
This coupling nut adheres to metric coarse thread standards with M2.5 size, 0.45 mm pitch, and Class 6H thread fit for precise tolerances. Dimensions include 4.5 mm width and 6 mm length, manufactured from black-oxide steel with external hex drive. It complies with RoHS 3 (2015/863/EU) under exemption 6(a)-I for lead as a steel alloying element, ensuring environmental and safety standards are met for industrial use.
