Composition: Hexagon head bolts acc. to ISO 4014, hexagon head screws acc. to ISO 4017 and hexagon nuts acc. to DIN 934 Steel class 8.8-l8l zinc plated Contents: M10x20 -x25 -x30 -x40 -x50 -x60 / M12x30 -x40 -x50 / M14x50 -x60 / M16x40 -x50 -x60 157 pieces