General description Auto Replacement M18x1.5 O2 Oxygen Sensor Stepped Hex Bolt Bung Plug is designed for efficient oxygen sensor fittings. This product is made from durable stainless steel, ensuring longevity and reliability in various applications. Technical specifications Size: M18x1.5 Color: Silver Material: Stainless Steel Package Contents: 10 x Oxygen Sensor Bung Plug Measurement allowed error: +/- 1-3 cm