A machine screw is a type of fastener designed to hold objects together. It typically has a cylindrical shaft with a helical thread and a flat or rounded head. Machine screws are used in various applications, often requiring a nut or a tapped hole for secure fastening. They come in different sizes, materials, and thread types to suit specific needs. These screws are commonly made from materials like steel, stainless steel, or plastic, providing strength and durability. They are widely used in machinery, electronics, and construction, making them essential components in many industries. Proper selection of a machine screw ensures effective assembly and stability.