Tube Nuts, -6 AN, Fits 3/8 in. O.D. Hardline Tube, Requires Tube Sleeve, Stainless Steel, Natural Finish, Set of 2|JEGS Tube Nuts [-6 AN, Stainless Steel].
JEGS 110390 Tube Sleeves
JEGS 110392 Tube Sleeves
Earl's 581803 Aluminum Tube Nuts
Earl's 581806 Aluminum Tube Nuts
Fragola Performance Systems 481803 Bl 10 3 Aluminum Tube Nuts 10Pk
Raceworks Stainless Steel Inverted Flare Tube Nuts Pair M10x1.0mm - RWF-366-SS