S-94645A340 M33 DIN 985, ISO 10511 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking technology that maintains secure fastening under dynamic loads
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in industrial environments
• Heavy-duty performance with Class 10 strength rating, ensuring reliable performance in high-stress applications
• High-temperature capability with nylon insert rated to 220°F (104°C) for thermal stability in demanding conditions
• Precision thread engagement with Class 6H thread fit and M33 x 3.5mm coarse threads for easy installation and consistent performance
• Standard external hex drive design for compatibility with common wrenching tools and efficient installation
• International compliance assurance meeting both DIN 985 and ISO 10511 standards for global project compatibility

Professional Applications & Engineering Value

This Class 10 heavy-duty nylon insert lock nut delivers exceptional engineering value in applications where vibration-induced loosening poses significant reliability concerns. The zinc-plated steel construction provides durable corrosion resistance while the nylon insert locking mechanism creates consistent friction against mating threads, eliminating the need for secondary locking devices. With M33 x 3.5mm coarse metric threads and Class 6H thread fit, this fastener ensures precise engagement in heavy machinery, automotive assemblies, and structural frameworks. The external hex drive style facilitates quick installation using standard tools, reducing assembly time while maintaining the integrity of critical connections subject to dynamic loads and temperature fluctuations up to 220°F.

Specification Summary & Compliance

This lock nut features M33 x 3.5mm coarse metric threads with Class 6H thread fit precision and right-hand thread direction. Manufactured to DIN 985 and ISO 10511 specifications, the fastener delivers dimensional accuracy and performance consistency. The 50mm width and 33mm height provide optimal wrenching surfaces while maintaining compact dimensions. Compliance with RoHS 3 (2015/863/EU) ensures environmental responsibility, and the Class 10 strength rating confirms its suitability for high-load applications requiring reliable, vibration-resistant fastening solutions.