... cap screw 1,Free samples for any standard sizes 2,Beautifull head,be in Spec 3,Stainless,steel 4,Factory, Din912 Hex socket cap screw ... and Metric spec are available4. Material of DIN912 socket cap screw :Carbon steel, Alloy steel, stainless steel or according ... Lengh:as requires6. Diameter :as requires7. Surface of DIN912 socket cap screw :Plain, black finished, Zinc plated (Galv), Nickel, phosphate ...