16pc. Set. 3/16 Tube - Stainless Tube Nut Fitting Pack - (10) 3/8-24 TN01, (2) 7/16-24 TN06, (2) 1/2-20 TN04, (2) 9/16-18 TN07. All the sizes to plumb any car or . These are all stainless steel solid fittings used for 3/16 brake line - all the correct sizes for the cylinder, brake valve, rubber hoses, wheel cylinders, calipers and any other brake component.These are exact to the factory originals and have all the details - they are the correct size and shape with the correct color. This is a exact inline tube reproduction of the original.