<p><strong>Connector types on both sides of the adapter</strong></p> <ul> <li>One side: S60 x 6 Buttress thread. 60.0mm (2.36 ") outside diameter and 6.00mm (0.24") thread pitch (distance between threads) to DIN Standard 6131. This is the most common thread found on European IBC's.</li> <li>Second side: 2 "male NPT pipe thread for 2" pipe (0.09 "- 11.5 TPI) - American National Standard Straight Pipe Thread.</li> </ul>