ASTM A193 B7 v s A320 L7 Stud Bolts
A194 gr 2H vs A194 gr 7 Nuts Mostly ASTM A193 Grade B7 bolts are selected along with ASTM A194 Grade 2H nuts However there is no ASTM or other standard where it recommends using A194 Gr 2H nuts with this bolt The reason that A194 grade 2H