Replacing Gaskets on 90 degree oil filter adapter

413 said
Don't worry too much about the bolt, just dig into it and see what you have.

There are two styles of bolts with different oil holes, one type is worse for twisting.

You don't have a socket set with all the sizes? What size socket did you buy for this job?
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The bolt head is 1 3/16"s. I have lots of sockets but not that size so I had to buy one. The hardware stores didnt even have that size socket. Finally found one in stock at an auto parts store.