NA 121
DIN Standards Committee Tools and Clamping Devices
DIN 837 [Withdrawn] referenced in following documents:
| Document number | Edition | Title |
|---|---|---|
| LN 29942 | 1985-02 | Aerospace; nuts, bi-hexagon flange, deep counterbore, self-locking for temperatures up to 235 °C for bolts and screws with nominal tensile strength of 1550 and 1800 N/mm² More |
