... raw material is usually steel 20, coated yellow Zinc. Commoditybrake parts, hose fittingsMaterialMild steel, stainless steel, aluminum, copperThread standardsMetric: M10X1, M10X1.25 ... /8X18 etcStylesMale fitting, female fitting, banjo, nut, boltMaking technicsRivet; welding joint; wedge; cold heading; casting,OtherMetal accessories, rubber accessories, plastic accessories brake hose fittings parts