S-90237A140 M8 DIN 985, ISO 10511 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through precision-engineered nylon insert that maintains locking force under dynamic loads
• Exceptional corrosion protection with black corrosion-resistant coating for extended service life in harsh environments
• High-temperature performance with nylon insert rated for temperatures up to 220°F (104°C)
• Heavy-duty strength rating with Class 10 mechanical properties for demanding industrial applications
• Reliable coarse threading (M8 x 1.25 mm) for quick installation and secure fastening
• Standard external hex design for easy installation using common wrench tools
• International compliance meeting both DIN 985 and ISO 10511 standards for global project compatibility

Professional Applications & Engineering Value

This M8 nylon insert lock nut delivers critical vibration resistance in demanding industrial environments where constant motion and mechanical stress can compromise fastener integrity. The black corrosion-resistant coated steel construction provides essential protection against environmental degradation, while the precision Class 6H thread fit ensures smooth installation and consistent clamping force. Engineered for heavy-duty applications including machinery, automotive assemblies, and industrial equipment, this metric locknut solves the common problem of fastener loosening under vibration, reducing maintenance requirements and improving operational safety. The external hex drive style facilitates quick installation and removal using standard tools, making it ideal for production lines and field service applications where efficiency matters.

Specification Summary & Compliance

This locknut features M8 x 1.25 mm coarse threading with Class 6H thread tolerance for precision fit and reliable performance. Manufactured to DIN 985 and ISO 10511 specifications with Class 10 strength rating for heavy-duty applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across various industrial sectors. Dimensions include 13mm width and 8mm height for standardized installation requirements.