| unit：mm | ||||
| Tolerance grade | Classification of the nominal length of the shorter side | |||
|---|---|---|---|---|
| under 100 | Over 100 300 or less |
Over 300 1000 or less |
Over 1000 3000 or less |
|
| Squareness tolerance | ||||
| H | 0.2 | 0.3 | 0.4 | 0.5 |
| K | 0.4 | 0.6 | 0.8 | 1 |
| L | 0.6 | 1 | 1.5 | 2 |
| References: "JIS Handbook Machine Elements 2001", page 584, Table 2 Quoted from ordinary intersections at square angles. | ||||