... samples and drawings.The raw material is usually steel 20, coated yellow Zinc. Commoditybrake hose fittingsMaterialMild steel, stainless steel, aluminum, ... Imperial: 3/8X24, 7/16X24, 7/16X20, 5/8X18 etcStylesMale fitting, female fitting, banjo, nut, boltMaking technicsRivet; welding joint; wedge; cold ... , rubber accessories, plastic accessories hydraulic brake hose carbon steel pipe fitting