Unknown C15 Lifting Eye Bolt Lot of 4

M12 C15 forged steel lifting eye bolts designed for secure hoisting, rigging, and anchoring applications in industrial and mechanical environments; this listing is for a lot of 4 eye bolts.
Technical specifications:
Product type: Lifting eye bolt / hoisting ring
Material grade: C15 carbon steel
Thread size: M12 metric
Thread type: Metric coarse
Design standard: DIN 580 style lifting eye
Construction: Drop‑forged one‑piece steel
Load direction: Vertical lifting (side loading reduces capacity)
Mounting method: Threaded insertion into tapped hole or nut
Finish: Zinc plated / galvanized surface
Corrosion resistance: Moderate (indoor/outdoor industrial use)
Typical working load limit (WLL): Approx. 340 kg vertical (DIN 580 reference, verify before use)
Application: Lifting points, hoisting, rigging, machinery handling, motor lifting, tie‑down and anchoring
Reusable: Yes
Industry use: Industrial, mechanical, construction, maintenance
Country of manufacture: Not specified
Quantity included: Lot of 4 eye bolts Please review pictures carefully and let us know if you have any questions!