3/8" x 24 unf male fully threaded nut, .562” long overall
SAE flare (45 degree/inverted/double)
Most common American nut in Stainless Steel
Uses 7/16” wrench.
This is a Stainless Steel standard American thread brake line nut for use with 3/16”/4.75mm OD (CNF-3) tubing with SAE flare.