S-90576A531 M42 ISO 10511, DIN 985 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through the durable nylon insert that maintains locking force in high-stress applications
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in demanding environments
• High-temperature reliability with nylon insert rated up to 220°F (104°C) for thermal stability in industrial settings
• Exceptional load-bearing capacity with Class 8 strength classification ensuring reliable performance under heavy loads
• Precision thread engagement with Class 6H thread fit and fine 3mm pitch for secure, vibration-resistant fastening
• Standardized compatibility meeting both ISO 10511 and DIN 985 specifications for global engineering applications
• Easy installation and removal with standard 65mm external hex drive profile for convenient tool access

Professional Applications & Engineering Value

This M42 nylon insert lock nut delivers critical vibration resistance where conventional fasteners fail. The zinc-plated steel construction provides essential corrosion protection for industrial machinery, heavy equipment, and structural applications exposed to harsh conditions. With its Class 8 strength rating and fine metric thread (M42 x 3mm), this locknut maintains clamping force in high-vibration environments like manufacturing equipment, automotive assemblies, and construction machinery. The nylon insert locking mechanism creates consistent friction against the mating bolt, preventing loosening from dynamic loads while allowing for multiple reuses. Engineered to ISO 10511 and DIN 985 standards, this industrial-grade fastener ensures compatibility with global metric bolt systems and simplifies procurement for maintenance and production teams.

Specification Summary & Compliance

This precision metric lock nut features M42 x 3mm fine threads with Class 6H thread fit tolerance for optimal engagement. Manufactured to ISO 10511 and DIN 985 specifications with external hex drive (65mm width, 42mm height) and right-hand thread direction. The component is fully RoHS 3 (2015/863/EU) compliant and rated for temperatures up to 220°F. Constructed from zinc-plated steel with Class 8 strength classification for heavy-duty industrial applications requiring reliable, vibration-resistant fastening solutions.