A screw is a versatile fastening device widely used in various industries, from construction to electronics. Its primary function is to hold materials together, either by creating a tight bond between two components or by allowing for the assembly and disassembly of parts. Screws come in various shapes and sizes, with threads that allow them to grip tightly into materials such as metal, wood, or plastic. The screw’s design, with its thread, helps distribute force evenly, making it a reliable choice for long-term stability.

The production process of screws typically begins with raw materials like steel, stainless steel, or brass. These materials are first cut into small pieces called blanks, which are then shaped into screws through a process called cold heading. This involves pressing and shaping the metal at room temperature. The next step is thread rolling, where the blank is passed through dies that create the spiral threads on the screw. For specialized screws, additional processes like heat treatment are applied to improve strength and durability. Finally, screws are polished, plated, or coated if clients require them to enhance corrosion resistance and appearance.

Quality control is essential during screw production, with measurements and testing performed to ensure precision in thread size, length, and strength. Through these steps, screws are manufactured to meet the specific needs of industries, offering a reliable solution for fastening and assembly applications.