... DIN911Materialsteel, stainless steel, carbon steel, free cutting steel, aluminum, brass, copper, alloyFinishPlating, Oxiding, Blasting, Painting, Anodizing, Heat treatment, ... (SS 316), B 8 T (SS 321), A 2, A 4Freeun produces custom hexagon socket screws per customers' drawings ... 2MM - 50MM It is usually used to fasten components with round axles.Size list:Hexagon Wrenches(Hexagon Key) DIN911Material; ...