Ball Lock Pins, Index Plungers, Ball Transfers manufacturer / supplier in China, offering Black Grade 12.9 Carbon Steel M2 M2.5 M3 M4 M5 M6 M8 M10 Hex Socket Set Screw Headless Cup Point Set Screw, DIN914 Hex Hexagon Socket Allen Tapered End Cone Point Set Screw Grub Bolt M3 M4 M5 M6 M8 Black Grade 12.9 Alloy Steel, M1.6 M2 M2.5 M3 M3.5 M4 M5 M6 M8 M10 M12 DIN916 Hex Hexagon Socket Allen Cup Point Grub Bolt Set Screw Black Grade 12.9 Steel and so on.