... any color, other parts are galvanized steel; W4-- all of the three parts are 300ss stainless steel, housing without painted; W5-- all ... of the three parts are 316ss stainless steel, housing without painted. The sizes are as the following: 10 ... 89mm, 76-92mm, 80-100mm, 90-110mm, 100-120mm. Blue head carbon steel & stainless steel M7 screw inside smooth high strength hose clamp