S-99183A190 M20 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through distorted thread top-lock technology that maintains secure fastening under extreme conditions
• Exceptional mechanical strength with Class 10 rating ensuring reliable performance in heavy-duty applications
• Enhanced corrosion protection from zinc-plated steel construction for extended service life in harsh environments
• Quick installation efficiency with coarse 2.5mm pitch threads that reduce assembly time while maintaining holding power
• Precise thread engagement with Class 6H fit providing consistent performance and reduced risk of cross-threading
• Standard external hex drive design for compatibility with common tools and straightforward installation
• Environmental compliance assurance with RoHS 3 certification meeting industrial safety and regulatory standards

Professional Applications & Engineering Value

This M20 locknut with distorted thread technology delivers critical vibration resistance for industrial machinery, automotive assemblies, and structural applications where loosening under dynamic loads poses significant safety risks. The zinc-plated steel construction provides durable corrosion protection in demanding environments, while the coarse 2.5mm pitch ensures rapid installation without compromising clamping force. Engineered with Class 10 strength rating, this metric locknut maintains integrity under high tensile and vibrational stresses, making it ideal for heavy equipment, construction machinery, and transportation systems where reliable fastening is non-negotiable. The external hex drive design offers compatibility with standard tools, streamlining maintenance procedures across diverse industrial settings.

Specification Summary & Compliance

This heavy-duty M20x2.5 locknut features Class 6H thread fit precision according to metric standards, ensuring consistent engagement and reliable performance. The manufacturing complies with RoHS 3 (2015/863/EU) environmental directives, confirming adherence to industrial safety regulations. With dimensions of 30mm width and 20mm height, the nut maintains Class 10 strength classification for maximum load-bearing capacity in demanding applications. The distorted thread top-lock design provides secure fastening while the right-hand thread direction and coarse thread spacing deliver optimal installation efficiency across industrial fastening systems.