Hexagon Spring Washer Nut

The hexagon spring washer nut is a two-part fastener that pairs a standard UN-threaded hex nut with a built-in spring washer. The washer sits beneath the nut, applying tension to resist loosening from vibrations or thermal shifts.  

Product details and parameters

Available in steel or stainless steel, the hexagon spring washer nut is designed for use on machinery, vehicles or equipment that use the Unified National (UN) thread standard. Its hexagonal shape requires only basic tools to use, and the combination eliminates the need for separate washers, saving time and reducing loose parts. The hexagon spring washer nut is ideal for situations that involve shaking or high movement.

The spring washer of the hexagon spring washer nut keeps constant pressure on the bolt, preventing loosening better than regular nuts. You don't need to keep track of or install extra parts, just tighten the nut and the washer will do the job. The galvanized steel material we use resists rust, making it perfect for outdoor gear or wet areas. It is slightly larger than regular nuts and fits UN threaded bolts commonly found in North American machinery.

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Maintenance Tips

Regularly check the washers of hexagon spring washer nuts for wear or rust. If the spring feels loose or soft, replace the entire nut immediately. If the load is too heavy, do not reuse the old nut, just replace it with a new one.When tightening, use a torque wrench. Over-tightening will crush the gasket. If you’re in a salty or humid area, go for stainless steel versions. Basic steps, no fancy stuff.