S-90576A106 M18 ISO 10511, DIN 985 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through precision-engineered nylon insert that maintains locking force under dynamic loads
• Excellent corrosion protection with zinc-plated steel construction for extended service life in harsh environments
• High-temperature performance with nylon insert rated up to 220°F (104°C) for demanding industrial applications
• Reusable locking capability allows for multiple installations without compromising vibration resistance
• Precise thread engagement with Class 6H thread fit ensuring reliable, consistent fastening performance
• Standard hex profile (27mm) for compatibility with common wrenching tools and efficient installation
• Certified reliability meeting both ISO 10511 and DIN 985 standards for quality assurance

Professional Applications & Engineering Value

This M18 nylon insert lock nut delivers critical vibration resistance in demanding industrial environments where constant motion and shock loads compromise standard fasteners. The zinc-plated steel construction provides essential corrosion protection while maintaining the Class 8 strength rating required for high-stress applications. The metric fine thread (1.5mm pitch) ensures precise engagement and superior clamping force distribution. Engineering teams specify these locknuts for machinery, automotive assemblies, and structural applications where reliable, reusable fastening prevents costly downtime from loosening under vibration. The nylon insert creates consistent friction that maintains torque integrity through thermal cycles up to 220°F, making these locknuts ideal for engines, pumps, and industrial equipment operating in challenging conditions.

Specification Summary & Compliance

This locknut features M18 x 1.5mm fine metric threads with Class 6H thread fit tolerance for precision engagement. Manufactured to ISO 10511 and DIN 985 specifications, ensuring dimensional accuracy and performance reliability. The external hex drive (27mm width) provides standard tool compatibility. With an overall height of 18.5mm and right-hand thread direction, this fastener is RoHS 3 (2015/863/EU) compliant and rated for service temperatures up to 220°F. The Class 8 strength classification confirms high mechanical performance for industrial fastening requirements.