Machine screws are a type of screw used in machinery and other industrial applications. They are typically smaller in diameter than other types of screws, and are threaded along their entire length. Machine screws are designed to be used with nuts or threaded holes to secure two or more objects together. Machine screws are available in a range of sizes, typically designated by a number that indicates the diameter and length of the screw. They are also available in a variety of head styles, including flat head, round head, and pan head, as well as in different materials, including steel, stainless steel, brass, and aluminum. Machine screws are often used in precision applications where a secure, tight fit is required, such as in the assembly of machinery, electronic devices, and automotive components. They are also commonly used in woodworking and furniture making, as well as in construction and metalworking applications.

When using machine screws, it is important to choose the correct size and thread pitch for the application, as well as to use the correct driver or bit to avoid damaging the screw head. Machine screws can be driven with a variety of tools, including screwdrivers, wrenches, and power drivers. Machine screws are an essential component in many industrial and manufacturing applications, and are available in a wide range of sizes, styles, and materials to meet the needs of different applications.