Drop-Forged Safety
Continuous grain flow eliminates internal defects, ensuring high tensile toughness and preventing sudden brittle failure.

DIN 580 is a standard lifting eye bolt with sizes ranging from M6 to M100. It features a high-strength forged ring head and a metric threaded shank, and specifies the dimensions, materials, mechanical properties, and technical requirements for shoulder-ring-type mechanical threaded lifting eye bolts.
This standard is designed to provide a safe lifting point for machinery, molds, motors, steel structures, industrial equipment, and heavy components, and is widely used in the construction, manufacturing, shipbuilding, renewable energy, mining, and heavy engineering industries.


Continuous grain flow eliminates internal defects, ensuring high tensile toughness and preventing sudden brittle failure.
No moving parts or bearings. Resistant to dust and corrosion, offering high environmental resilience and low cost.
Yes, but only up to 45° within the eye plane. Pulling perpendicular to the eye ring or exceeding 45° is strictly prohibited due to bending risks.
Forging ensures continuous grain flow and eliminates internal voids. This maximizes tensile toughness and guarantees visible deformation instead of sudden brittle snapping.
The hole diameter should generally be 70% to 85% of the screw's nominal diameter (e.g., 3.2mm–3.5mm for an ST 4.2 screw). Harder or thicker materials require larger pilot holes to prevent head breakage during installation.
The collar must seat perfectly flush against the mating surface. Use shim washers if the bolt bottoms out before full contact is made.