JIS B 1186 Plain Washers
| Size No | I.D | O.D | THK | Weight for KG / 1000 PCS |
|---|---|---|---|---|
| M12 | 13 | 26 | 3.2 | 10.05 |
| M16 | 17 | 32 | 4.5 | 20.50 |
| M20 | 21 | 40 | 6 | 32.30 |
| M22 | 23 | 44 | 6 | 58.90 |
| M24 | 25 | 48 | 6 | 62.40 |
| M27 | 28 | 56 | 6 | 87.00 |
| M30 | 33 | 60 | 8 | 124.42 |

| Size No | I.D | O.D | THK | Weight for KG / 1000 PCS |
|---|---|---|---|---|
| M12 | 13 | 26 | 3.2 | 10.05 |
| M16 | 17 | 32 | 4.5 | 20.50 |
| M20 | 21 | 40 | 6 | 32.30 |
| M22 | 23 | 44 | 6 | 58.90 |
| M24 | 25 | 48 | 6 | 62.40 |
| M27 | 28 | 56 | 6 | 87.00 |
| M30 | 33 | 60 | 8 | 124.42 |