Composition: Sealing rings acc. to DIN 7603 A, filled sealing rings acc. to DIN 7603 C and plain washers without chamfer acc. to DIN 125-1 A Aluminium 99F11; hardness HB 32-45, copper, copper/FESTAPLAN and plastic PA 6.6 (white) Contents: Aluminium: Ø 8x14x1 / 10x14x1 / 12x18x1,5 / 14x20x1,5 / 16x22x1,5 / 18x24x1,5 / 20x26x1,5 Copper: Ø 10x16x1,5 / 12x16x1,5 / 14x20x1,5 / 16x22x2 / 18x24x2 / 20x24x2 Copper/FESTAPLAN: Ø 14x20x2 / 16x22x2 / 18x24x2 / 20x26x2 Plastic: M14,5 1155 pieces