S-93825A220 M4 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
Washer Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through integrated external-tooth lock washer that bites into surfaces for maximum holding power
- Exceptional mechanical strength with Class 8 rating, capable of withstanding high-stress applications without deformation
- Enhanced corrosion protection from black zinc plating, extending service life in harsh industrial environments
- Reliable thread engagement with Class 6H thread fit ensuring precise mating with compatible bolts
- Quick installation and removal using standard hex tools, reducing assembly time and maintenance costs
- Coarse thread design providing faster installation and better performance in materials prone to stripping
- Environmental compliance meeting RoHS 3 standards for safe use across regulated industries
Professional Applications & Engineering Value
This M4 locknut with external-tooth lock washer delivers critical vibration resistance in demanding mechanical systems where loosening under dynamic loads can cause equipment failure. The black zinc plated steel construction provides durable corrosion protection while maintaining the Class 8 strength rating required for high-torque applications. The integrated external-tooth lock washer creates positive mechanical locking by embedding into mating surfaces, eliminating the need for additional locking components. This metric locknut is engineered for automotive assemblies, industrial machinery, and precision equipment where vibration resistance and reliable fastening are essential for operational safety and reduced maintenance intervals.
Specification Summary & Compliance
This M4 x 0.7mm locknut features Class 6H thread fit tolerance for precise engagement, coarse thread spacing for efficient installation, and right-hand thread direction. The assembly includes an 8.5mm OD steel lock washer integrated with the standard hex profile nut. Manufactured to meet RoHS 3 (2015/863/EU) compliance standards, this Class 8 strength fastener ensures reliable performance while adhering to international environmental regulations for industrial components.
