Exhaust Bolts and Nuts kit:It includes 6 T-bolt screw fasteners and 6 flange nuts ,【Material 】304 Stainless Steel,【Size】M10X1.5-35mm High Quality Flange Bolts :Exhaust flange bolts exquisite craftsmanship is easy to use, the threads are clear, tightly arranged, sturdy and durable, and have a long service life Exhaust Manifold Hardware Kit:exhaust flange has good heat resistance, low temperature strength and other mechanical properties.wear-resistant and durable，anti-corrosion and anti-rust,hard and not easy to break Easy to Screw in, Not Easy to Fall Off:Exhaust bolts made of stainless steel, it can withstand higher torque, and is more reliable after twisting, Strong threads that can be easily loosened and quickly tightened, making it easy for you to adjust or customize the fixture 304 Anti-Rust and Corrosion-Resistant Stainless Steel :M10x1.25 stainless flange bolt made of high-quality 304 stainless steel,stainless steel bolts have unique anti-rust properties and are less prone to rust than conventional bolts, so there is no need to worry about rusting and being corroded m10x1.5 bolt