Guess you have to get the bolt out first and then replace the stripped bolt.
You can do this by using a small drill bit into the middle of the bolt. Be careful with this. After drilling the whole in the middle insert a nail and pull it out.
Be careful with the bolt threads. After removing the bolt, you will have to find a replacement bolt. Try a local hardware store, such as home depot.
THen put it all back, use oil to lubricate and make sure to align the blades.
Answers & Comments
Guess you have to get the bolt out first and then replace the stripped bolt.
You can do this by using a small drill bit into the middle of the bolt. Be careful with this. After drilling the whole in the middle insert a nail and pull it out.
Be careful with the bolt threads. After removing the bolt, you will have to find a replacement bolt. Try a local hardware store, such as home depot.
THen put it all back, use oil to lubricate and make sure to align the blades.
God Bless You!