67 A body brake line sizes

Yea, I am just a little confused. I bought oem lines from Mancinni, I noticed some nuts are smaller than the others. I noticed my master cylinder has 2 diff. sizes as does my Dist. block. Just trying to figure out if they are 1/4 or NPT or AN etc. Thanks

don't take this the wrong way. but if its confusing ya that much just call fine lines or inline tube and order the pieces ya need. it will take all the guess work out for you..