Heavy duty stainless steel weld on Hinges with integrated grease zerk ensures smooth rotation for long term outdoor durability for trailer manufacturers, BBQ smoker builders, and steel gate fabricators needing heavy duty points Each hinge in this 10 pack undergoes rigorous stress testing to deliver weldability and alignment consistency across multiple installations Precisions engineered 6in stainless steel construction features a reinforced pin for secure load bearing in extreme conditions Built to withstand harsh environments on truck doors, industrial equipment, or outdoor smokers while maintaining movement