The ISO4162 Hex Flange Bolt (Small Series) is a high-strength fastener manufactured strictly according to the ISO4162 standard. Featuring a flat or hex socket head with an integrated flange, its head surface is smooth and the flange evenly widened with built-in anti-slip teeth, improving assembly fit and locking stability. This design eliminates the need for washers, simplifying installation while ensuring a secure connection.
Made from premium alloy steel or stainless steel, the bolt undergoes precise forging, heat treatment, and multiple anti-corrosion surface processes, offering excellent tensile strength, fatigue resistance, and corrosion protection. Thread accuracy meets Class A standards, providing smooth engagement and uniform load distribution.
Available in M5–M16 coarse thread sizes (M5–M20 extended), these bolts are ideal for automotive chassis and engine assembly, construction machinery, new energy equipment, steel structures, home appliance molds, and rail transit. They provide high structural strength, installation efficiency, and compact design, making them a reliable standard fastening solution in modern manufacturing.
| Parameter | Details |
|---|---|
| Standard | ISO4162 |
| Head Type | Flat head or hex socket with integrated flange, anti-slip teeth |
| Material | High-strength alloy steel or stainless steel |
| Strength Grade | 8.8 / 10.9 / 12.9 |
| Surface Treatment | Zinc plating, Dacromet, black oxide, phosphating |
| Size Range | M5–M20; length customizable; coarse thread, 6g accuracy |
| Mechanical Properties | High tensile strength, fatigue resistance, vibration and impact resistant |
| Applications | Automotive, construction machinery, new energy equipment, rail transit, steel structures, general machinery |
| Installation Advantage | Flange design with anti-slip teeth; no washers needed; simplified assembly, stable connection |
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