S-90631A117 M12 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through the nylon insert that maintains locking force under dynamic loads
• Reliable performance in high-temperature environments with nylon insert rated up to 220°F (104°C)
• Enhanced corrosion protection from zinc-plated steel construction for extended service life
• Precision thread engagement with Class 6H thread fit ensuring consistent clamping force
• Quick installation and removal using standard 19mm wrenches with external hex drive design
• Secure fastening in demanding applications through coarse thread pitch (1.75mm) for better grip
• Compliance with international standards including REACH and RoHS 3 for global project acceptance

Professional Applications & Engineering Value

This M12 nylon insert lock nut delivers critical vibration resistance in industrial machinery, automotive assemblies, and construction equipment where secure fastening is paramount. The zinc-plated steel construction provides durable corrosion protection while the nylon insert creates consistent friction that prevents loosening under continuous vibration and thermal cycling. Engineered with Class 6H precision threads and metric coarse threading, this locknut maintains clamping force in high-stress applications, eliminating the need for secondary locking mechanisms. The external hex drive allows for efficient installation using standard tools, reducing assembly time while ensuring reliable performance in temperature environments up to 220°F.

Specification Summary & Compliance

This M12 x 1.75mm locknut features Class 6H thread fit per metric standards with coarse thread spacing for optimal engagement. The zinc-plated steel construction meets industrial durability requirements while the 19mm width and 12mm height provide standard dimensional compatibility. Manufacturing complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) directives, ensuring environmental compliance for global industrial applications.