Features 1. The plate and cap are made of high-quality flame-retardant plastics and have good flame retardant properties. 2. There are 12 bolts on the plate for fixing; the lid is twist-type and has a built-in air hole. 3. The plate diameter is 150mm/5.9in, and the plate thickness is 5mm/0.2in, which is durable and offers a long service life. 4. Comes with all necessary accessories for convenient installation. 5. Each unit undergoes a drive test to ensure performance and verify that the design meets high quality standards. Specification Item Type: Fuel Cell Gas Tank Filler Cap Material: Fire Resistant Plastic Color: Black Plate Diameter: Approx. 150mm/5.9in Plate Thickness: Approx. 5mm/0.2in Minimum Mounting Hole: Approx. 100mm/3.9in Maximum Mounting Hole: Approx. 120mm/4.7in Package List 1 x Fuel Cell Gas Tank Filler Cap 1 x Silver Washer 1 x Black Gasket 12 x Bolt