How Billions of Screws Are Made From Steel Wire Inside Massive Production Line

How Billions of Screws Are Made Every Year – Inside Massive Production Lines

Every year, factories around the world manufacture over two trillion screws — tiny metal components that hold together everything from airplanes and skyscrapers to cars, furniture, and even the device you’re watching this on. Behind their small size lies one of the most precise and critical industrial processes on Earth.

In this documentary, The Factoran takes you inside massive screw production lines — from mining iron ore and melting steel at over 2,700°F, to high-speed cold forging, thread rolling, and advanced heat treatment that hardens each screw to withstand enormous pressure. Watch how microscopic precision, powerful machines, and decades of engineering innovation come together to forge the fasteners that keep the modern world standing.

💬 If you could visit one factory — a steel mill, a car plant, a tool factory, or a screw line — which would you choose? Comment below, hit like 👍, and subscribe to The Factoran for more deep dives inside the world’s most powerful production systems.

▶ Watch now to discover how raw steel transforms into billions of screws that hold our civilization together — one turn at a time.

🌍 The Factoran reveals how things are made — from raw materials to finished products — uncovering the machines, science, and human expertise that drive the planet’s greatest industries.
#factory #howitsmade #screwfactory

00:00 Introduction
56:04 Screw Industry Overview
02:06 From Mines To Metal
03:28 Forging The Steel
06:34 Cold Heading
08:32 Thread Rolling
10:11 Heat Treatment
12:22 Surface Treatment
14:24 Inspection & Distribution
15:36 Conclusion