The bolt is 8mm. The cover is 30mm. The weight has an inner diameter of 10mm and a depth of 15mm (this is the distance to the pointed part). Width: 27mm, Height: 37mm This is a general-purpose item. There may be minor blemishes and scratches. Please note that operation is not guaranteed for all manufacturers. Processing may be required depending on the pot you are installing it on. Returns are not accepted even if it cannot be used. Thank you for your understanding. Thank you. #18cm 20cm Pressure Cooker Weight #I am also selling other items (＞＜)