A193 B7 hex bolts are popular in DT fastener's product range. DT could offer customers high-strength B7 hex bolts. In recent years, hex bolt A193 B7 has been widely used. You can find the existence of these heavy hex structural bolts widely in steel structure construction, machinery industry, and oil pipelines.
ASTM A193 B7 Hex Bolts Equivalent Norms: ASME B 18.2.1 - 2012 Heavy Hex Screws
When the bolt length L is less than the thread length b value in the table, it should be processed as full thread.