Maximum twist tolerance for square, hexagonal and octagonal bars, copper and copper alloys, EN 12164
Maximum twist tolerance for square, hexagonal and octagonal bars
Maximum permissible twist V of a polygonal bar, measured over the length, according to the drawing.
| Nominal width across flats W | Maximum permissible twist V | |
|---|---|---|
| over | up to and incl. | for any 1 m bar length |
| 10a | 18 | 1.0 |
| 18 | 30 | 2.0 |
| 30 | 60 | 3.0 |
| a Including 10. | ||
Legend
1 reference plane
V twist
W width across flats