LTWFITTING 1/2 in. Brass 45-Degree Flare Long Nuts (5-Pack) HF41L805 - The Home Depot

LTWFITTING 5/8 in. Brass 45-Degree Flare Long Nuts (5-Pack) HF41L1005 - The Home Depot

LTWFITTING 5/8 in. OD x 1/2 in. OD Flare Brass Reducing Coupling Fitting (5- Pack) HF42R10805 - The Home Depot

Everbilt 1/2 in. Flare Brass Nut Fitting (2-Pack) 801589 - The Home Depot

Sioux Chief 1/2 inch Brass Short-Rod Flare Nut

Sioux Chief 1/2 inch Brass Forged Flare Nut

LTWFITTING 1/2 in. OD x 1/4 in. OD Flare Brass Reducing Coupling Fitting (5- Pack) HF42R8405 - The Home Depot

LTWFITTING 1/2 in. O.D. Brass Compression Coupling Fitting (5-Pack) HF62805 - The Home Depot

LTWFITTING 1/4 in. Flare Brass SAE 45° Flare Short Rod Nuts (50-Pack) HF41S450 - The Home Depot

LTWFITTING 1/2 in. Flare Brass SAE 45-Degree Flare Short Rod Nuts (10-Pack) HF41S810 - The Home Depot

Sioux Chief 1/2 inch Brass Short-Rod Flare Nut