Hello all,  Forgive me if this has been covered.  I am sure it has been at some point.  I am having some brass stamps made so I can do some hot stamping.  I currently stamp my makers mark and some requested stamping patterns with a shop press.  I am wanting to use an arbor press for accuracy in layout.  I plan on buying something inexpensive and having a machine shop bore out the arbor for an insert.  My question is does anyone known the thread size and pitch of the most commonly available