Hexagon socket set screw with cup point DIN916 Size:M2-M24 Grade: 22H 33H 45H ... 21 Finish:Black,Passivated,Zinc etc Hexagon socket set screws with cup point DIN916Size:M2-M24 Grade: 22H 33H 45H A2-21 ... finish, such as bright, zinc plated, black4) Can be made with different standards, such as ISO, DIN, ANSI, BS and ... your reference.Welcome customerized drawings. Hexagon socket set screw with cup point