... 21 Finish:Black,Passivated,Zinc Hexagon socket set screws with flat point DIN913Material:Stainless Steel,Carbon Steel ... kinds of set screws are available2) Can be made with different tensile strength3) Can be supplied with different finish ... as bright, zinc plated, black4) Can be made with different standards, such as ISO, DIN, ANSI, ... customerized drawings. Hexagon socket set screw with flat point