High-quality steel preload bolts with hexagon head. Sizes: M5 x 12, M5 x 20, M6 x 30, M6 x 40, M6 x 50, M8 x 30, M8 x 50, M8 x 60, M10 x 30, M10 x 60 and M10 x 70 mm. Handy boxed storage case.