FORGED FLARE NUT - FROST PROOF

Drop-forged from high purity brass, these nuts will not crack or split like machined flare nuts.

With the addition of frost expansion ports, these long barrel nuts won't loosen at low temperature

Complain for R-410A.

Frost proof flare nut available in 1/4", 3/8", 1/2", 5/8" and 3/4".