Your Cadillac Seville Gearbox fixing
Speedo gear retaining bolt
Type: Hex Head Tap Bolt
Thread length: 5/8 inch
Thread diameter: 5/16 inch
Threads per inch (tpi): 18
Our thanks to Andy Steeple for this submission.
Whether you are purchasing OEM or off the shelf replacements, please be aware that metal fixings are graded and, for safety, you should talk with the supplier about your specific use.