Composition: Hexagon socket set screws with cup point acc. to DIN 916 Steel class 45H Content: M4x5 -x8 -x10 / M5x8 -x10 -x12 -x16 / M6x8 -x10 -x12 -x16 -x20 / M8x12 -x16 -x20 / M10x16 -x20 -x25 245 pieces