The AlltoBards M8x1.25 Complete Exhaust Manifold Flange Stud Set includes four high-quality M8x1.25 double-ended studs and four 12mm copper self-locking nuts, providing a reliable and durable solution for connecting your turbocharger and exhaust manifold. These studs, made from high-strength alloy steel, offer excellent heat resistance and tensile strength, while the copper-plated nuts provide superior corrosion resistance. The precise M8x1.25 threading ensures a secure fit, preventing loosening under high temperatures and pressure. Easy to install with standard tools, this set ensures a tight and reliable connection, enhancing the stability and performance of your vehicle's turbocharger system.