Eaton Weatherhead 1110X4 Brass CA360 SAE 45 Degree Flare, Nut, 1/4" Tube OD (Pack of 10) SAE 45-degree flare nut for use with 1/4" OD flared tubing Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability For use with LP and natural gas, refrigeration, and hydraulic applications