[xkpxfatassxx]

If I can't find the size of a threading I have then what can I do? Story is long but the previous owner rethreaded it/had someone do it (professionally) and I don't know what size the screw is. It's larger then the standard cocker frame to body screw and that's about all the info I have. I do not have a caliper to measure it for me. I'm trying to purchase it online so I don't have to take my body to home depot, open all the boxes and try them out (and cut them at home). Any tricks to it? If I can't find out I'll just take it to home depot.