ISO 4162 Hexagon Flange Bolts — Small Series

The ISO4162 Hex Flange Bolt (Small Series) is a high-strength fastener that follows the ISO4162 standard strictly. In addition, it features a flat or hex socket head with an integrated flange. The design keeps the head surface smooth. At the same time, the flange uses an evenly widened structure with built-in anti-slip teeth, which improves assembly fit and locking stability.

As a result, this design eliminates the need for washers. It also simplifies installation and ensures a secure connection.

Moreover, manufacturers produce this bolt using premium alloy steel or stainless steel. The production process includes precise forging, heat treatment, and multiple anti-corrosion surface treatments. These processes improve tensile strength, fatigue resistance, and corrosion protection. In addition, the thread accuracy meets Class A standards, which ensures smooth engagement and uniform load distribution.

Furthermore, the product comes in M5–M16 coarse thread sizes, with M5–M20 extended options available. It is widely used in automotive chassis and engine assembly, construction machinery, new energy equipment, steel structures, home appliance molds, and rail transit applications. Therefore, it delivers high structural strength, improved installation efficiency, and a compact design, making it a reliable standard fastening solution in modern manufacturing.