Composition: Hexagon socket head cap screws acc. to DIN 912 Steel class 8.8 zinc plated Contents: M4x10 -x16 -x20 / M5x10 -x16 -x20 -x25 -x30 / M6x10 -x16 -x20 -x25 -x30 -x40 / M8x20 -x25 -x30 -x40 885 pieces