The base material (where the bolt is installed) should have a mechanical strength equal to or greater than the bolt itself (typically steel, cast steel, or grey cast iron). Orientation:
⚠️ Avoid free PDFs from file-sharing sites. They are often outdated (pre-2010), missing annexes, or illegally scanned. Using obsolete standards can lead to catastrophic lifting failures and legal liability.
Never combine a DIN 580 eyebolt with a non-DIN threaded hole. The thread tolerance is strict (6H for internal thread, 6g for bolt thread). Loose threads reduce load capacity. din 580 standard pdf
| Standard | Region | Angular Lifting Allowed? | Typical Application | |----------|--------|--------------------------|----------------------| | DIN 580 | Germany / Intl. | No (vertical only) | General lifting | | DIN 582 | Germany / Intl. | No | Swivel / rotating loads | | EN 1677-2 | Europe | Yes (with reduction) | Chain sling components | | ASME B30.26 | USA | No (vertical only) | Lifting eye bolts |
| Thread Size (M) | Safe Working Load (kg) | Min. Breaking Load (kg) | Eye Inner Diameter (mm) | |----------------|------------------------|--------------------------|--------------------------| | M8 | 140 | 560 | 20 | | M10 | 230 | 920 | 25 | | M12 | 340 | 1360 | 30 | | M16 | 700 | 2800 | 35 | | M20 | 1200 | 4800 | 45 | | M24 | 1800 | 7200 | 55 | | M30 | 2500 | 10000 | 65 | | M36 | 4000 | 16000 | 85 | | M42 | 5000 | 20000 | 95 | The base material (where the bolt is installed)
| Thread Size | WLL Axial (0°) | WLL Angular (45°) | | :--- | :--- | :--- | | M8 | 110 kg | 30 kg | | M12 | 350 kg | 90 kg | | M16 | 700 kg | 180 kg | | M20 | 1200 kg | 300 kg | | M30 | 3200 kg | 800 kg | | M42 | 6300 kg | 1500 kg |
Never replace a DIN 580 eyebolt with a standard ISO 4762 (socket head cap screw) or a simple nut and ring. Those are not forged for lifting. Using obsolete standards can lead to catastrophic lifting
One of the primary reasons professionals search for a is to determine the Working Load Limit (WLL) . The load capacity is not a static number; it changes based on the direction of the force applied.
If you are designing a lifting rig, you must ensure you are looking at the DIN 580 standard PDF, not the DIN 582 datasheet. Using DIN 582 for lifting is a severe safety violation that can lead to catastrophic failure.