Stainless Steel Inverted Flare Tube Nuts, Fits 3/8 in. O.D. Tubing, 5/8 in.-18 Tread, 3/8 in. I.D., Set of 2|JEGS Stainless Steel Inverted Flare Tube Nuts for 3/8 in. O.D. Tubing [5/8 in.-18 Thread].
JEGS 108382 Tube Nuts [-6 AN, Stainless Steel]
JEGS 635272 Tube Nuts
JEGS 105382 Tube Nuts
JEGS 110380 Tube Nuts
JEGS 100386 Steel Tube Nuts