Narrow Band clamp is a simple, effective way to connect exhaust system components such as pipes, mufflers, catalytic converters etc. No welding design, easy to install or remove. It is recommended that put exhaust sealant on the pipes before installation. 304 stainless steel band, zinc-plated M10 bolt and nut, steel gasket, aluminum alloy I-block. The band clamps make the force of 360 evenly distributed to provide a seal. Torque: 63 N·m.