S-91270A260 M3 Locknuts
Locknuts
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
Washer Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior vibration resistance through integrated spring lock washer design, preventing loosening in high-motion applications
- Exceptional durability with Class 8 strength rating, capable of withstanding heavy mechanical loads and stress
- Enhanced corrosion protection from black-oxide steel finish, extending service life in demanding industrial environments
- Quick installation with standard external hex drive profile, compatible with common wrench tools
- Reliable thread engagement with M3 coarse threading (0.5 mm pitch) and Class 6H fit, ensuring secure fastening
- Wide surface distribution from 10mm OD spring washer, reducing point pressure and material deformation
- Environmental compliance meeting RoHS 3 and REACH standards for safe use across regulated industries
Professional Applications & Engineering Value
This M3 locknut with integrated spring lock washer addresses critical vibration-induced loosening in industrial machinery, automotive assemblies, and electrical enclosures. The black-oxide steel construction provides superior corrosion resistance while maintaining the Class 8 strength required for high-stress applications. The metric coarse threading (M3 x 0.5 mm) ensures rapid installation and reliable performance in environments where thermal cycling and mechanical shocks are common. With its external hex drive and Class 6H thread fit, this locknut delivers consistent clamping force while resisting back-off under continuous operation, making it ideal for production lines requiring minimal maintenance intervals.
Specification Summary & Compliance
This metric hex locknut features precise M3 x 0.5 mm coarse threading with Class 6H thread fit tolerance, ensuring compatibility with standard metric bolts. The 5.5mm width and 3.5mm height dimensions provide compact yet robust fastening. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and material traceability. The Class 8 strength rating verifies mechanical performance meets industrial standards for reliable, long-term fastening solutions.
