Steel Metric Flareless Fitting, 18.00 mm WALpro Series Nut

For flareless metric hydraulic connections, that pairing is exactly right. The M 26x1.5 thread on this WALpro nut is spec'd to work with 18mm outer diameter tube, so if your tubing matches that OD, you're in good shape. It's forged or drawn high-quality steel and built to DIN standards, so fitment is consistent with other DIN-compliant components in your system.

The key callouts are an 18 mm tube outer diameter and an M26x1.5 thread. If your setup matches those two numbers, this WALpro series union nut is sized to go with it.

This union nut is rated to handle temperatures up to 120 degrees Celsius.