For overhead lifting, what should only be used?

For overhead lifting, the use of weld-free forged fittings is the safest and most reliable choice. These fittings are specifically designed to handle heavy loads and are made without any welds that could potentially fail under stress. Welded connections can introduce weaknesses, leading to failure during lifting operations, which poses significant risks to both people and equipment.

Weld-free forged fittings maintain their strength and integrity, ensuring that they can safely withstand the dynamic loads experienced during overhead lifting. Their durable construction and design make them suitable for various lifting applications, providing peace of mind in ensuring safety standards are met.

In contrast, while rated chains, slings, and button hook chains may also be used in lifting operations, they do not offer the specialized design benefits of weld-free forged fittings for overhead lifting specifically. Each of those options could have limitations in strength, versatility, or safety compared to the robustness and reliability of weld-free forged fittings.