Features: 1.Made of high?quality stainless steel SS304, waterproof and rust?proof, reliable quality. 2.The nut bung is easy to install, you can install it by your own. 3.It is convenient for your car to start if use the nut , it is suitable for all car models. 4.The function of the nut is to check engine light to fix M18 x 1.5 sensor vulnerability. 5.The length of the nut is about 17mm/0.7in, the diameter is about 26mm/1in, choose it for your car. Specification: Condition: 100% New Item Type: Oxygen Sensor Nut Bung Material: Stainless Steel SS304 Color: As Pictures Shown Length: Approx. 17mm/0.7in Diameter: Approx. 26mm/1in Internal Thread Size: M18 x 1.5 Applicable Models: Universal Function: Check engine light to fix M18 x 1.5 sensor vulnerability