Nuts Among hardware parts, the nut (NUT) is one of the most overlooked—and yet one of the most essential. Many people instinctively think: “A screw is enough.”But in reality, there are very few situations where a screw can work properly on its own. In most fastening applications, a nut is needed to truly clamp and secure the structure. From the most basic hex nut to insert nuts embedded in plastic parts, choosing the right type is where reliable fastening begins. --- 1. What

1. Why Do Plastic Parts Often Contain Metal Nuts? Brass Insert Nut Ever had this happen?You’ve tightened a screw into a plastic housing many times — eventually, the screw hole gets loose, won’t grip, and can’t hold anymore. That’s exactly when the Brass Insert Nut comes to the rescue. The concept is simple:Embed a brass nut inside the plastic hole so the plastic part can have a metal-strength threaded anchor. These nuts are installed using heat, ultrasonic vibration, or press