A tool nut is a type of hardware used to secure and fasten tools or other objects in place. Typically made from metal, tool nuts come in various shapes and sizes to fit different threaded fasteners, such as bolts or screws. These nuts have internal threads that allow them to screw onto a matching bolt, creating a secure connection. Common types of tool nuts include hex nuts, wing nuts, and lock nuts, each designed for specific applications. Hex nuts are standard, providing a simple and effective way to fasten parts, while wing nuts can be tightened without tools, making them ideal for applications where quick adjustments are needed. Lock nuts are used to prevent loosening due to vibrations. Tool nuts are widely used in industries ranging from construction and automotive to machinery and DIY projects, offering an essential role in creating sturdy, reliable assemblies.