Your overhaul will be easier to execute and with a more professional outcome when you specify new, correct specification parts like this Bolt with captive washer. This is better than making do with the old corroded, maybe slightly damaged items.
For other new parts to make your task easier and with better results check out our online schematic for your model.
Add as many new fasteners as you wish to your shopping cart and ay just one fixed price shipping cost. Use the correct specification fasteners and they will fit and seat correctly.