Description:It can be widely applied for hydraulic braking systems, fuel systems, and Transmission Systems,etc. Besides, household, industrial and commercial uses may also work.Suitable for brake line fittings assortment for 3/16" Brake Line Tube.Application: It can anti-rust, electroplating anti-corrosion.Made of good material, it's more durable than the average ones and has good corrosion resistance.Specification:Material: MetalColor: Gold ToneUnions Size: 15.7x13.7mm / 0.62"x0.54"(L*D)Unions Inner Diameter: 8.6mm /0.34"Thread Inner Diameter: 5mm / 0.19"Thread Size : M9 × 1.0Package Included:6 x Unions12 x Nuts.