... washer,union,spring 2)Carbon Steel ,Aluminium, Brass, SS. rubber 3)OEM fitting for hose,tube Material: Carbon Steel ,Aluminium ... , Brass, SS. rubberSurface treatment:: Zinc/Chromium/Nickel plating, ... 3/8X24, 7/16X24, 7/16X20, 5/8X18 etcStylesMale fitting, female fitting, banjo, nut, boltMaking technicsRivet; welding joint; wedge; cold ...