A threaded fastener is a type of hardware used to join two or more objects together. It features a helical ridge, known as a thread, which allows it to be screwed into a corresponding hole or nut. Common examples include screws, bolts, and nuts, which are widely used in construction, automotive, and machinery applications. These fasteners provide a strong and reliable connection, making them essential in various industries. The design of threaded fasteners allows for easy assembly and disassembly, enabling maintenance and repairs without damaging the components. Proper selection and installation are crucial for ensuring their effectiveness and safety.