NA 121
DIN Standards Committee Tools and Clamping Devices
DIN 3111 [CURRENT] references following documents:
| Document number | Edition | Title |
|---|---|---|
| DIN EN 10020 | 2000-07 | Definition and classification of grades of steel; German version EN 10020:2000 More |
| DIN ISO 272 | 1979-10 | Fasteners; Width across Flats for Hexagon Products More |
| DIN ISO 691 | 2007-04 | Assembly tools for screws and nuts - Wrench and socket openings - Tolerances for general use (ISO 691:2005) More |
