Feature: Fit for use with 3/16 inch steel, poly coated, or copper brake lines.The nuts are metric 1/2"-20 threads (regular 3/16 inch tube fitting size).Made of durable Galvanized Steel to prevent rust and corrosion resistance.Please confirm the size of the details according to the picture before purchasingSpecification: Color: Bronze ToneMaterial: Galvanized SteelThread Size: 1/2"-20Product Size: 16 x 14mm / 0.63" x 0.55"(L*D)Fitment:Universal for cars, SUVs, motorcycles, ATVs, trucks, etc.Package included: 10 x Nuts.