PN 82451 Triangular Crown Nuts
Triangular crown nuts are used with electrical equipment in mining. Drawing identifies thread, crown and outer dimensions.
Selected DIN 22425 reference dimensions (mm)
| Thread | P | C min. | C max. | dc min. | dc max. | k min. | k max. |
|---|---|---|---|---|---|---|---|
| M4 | 0.7 | 1.9 | 2.1 | 8.3 | 8.7 | 2.9 | 3.1 |
| M5 | 0.8 | 1.9 | 2.1 | 9.8 | 10.2 | 3.9 | 4.1 |
| M6 | 1.0 | 1.9 | 2.1 | 11.8 | 12.2 | 4.4 | 4.6 |
| M8 | 1.25 | 2.2 | 2.4 | 14.8 | 15.2 | 5.9 | 6.1 |
| M10 | 1.5 | 2.7 | 2.9 | 17.8 | 18.2 | 7.3 | 7.7 |
| M12 | 1.75 | 3.4 | 3.6 | 27.8 | 28.2 | 11.3 | 11.7 |
| M16 | 2 | 3.9 | 4.1 | 34.7 | 35.3 | 13.8 | 14.2 |
| M20 | 2.5 | 4.9 | 5.1 | 41.7 | 42.3 | 16.8 | 17.2 |
Selected DIN 22425 cross-reference only. PN-M-82451:1963 is withdrawn; confirm the governing edition and complete schedule before manufacture.