Some BS suspension bolts

[User Name]

Well the two that I need, one has some "nylon(?)" insert, and the other has a washer attached to it and they both spin freely of eachother but are attached.

Anyone know the name?

I've went to every hardware store within 12 miles and couldn't find anything close. I had a hell of a time just finding bolts to put the fucking engine on the stand. The 4 that I did find were the onlly ones they had and were $3 a piece.