NA 121
DIN Standards Committee Tools and Clamping Devices
DIN 3129 [CURRENT] references following documents:
| Document number | Edition | Title |
|---|---|---|
| DIN ISO 691 | 2007-04 | Assembly tools for screws and nuts - Wrench and socket openings - Tolerances for general use (ISO 691:2005) More |
| DIN 3121 | 1993-12 | Driving squares for machine-operated socket wrenches More |
| DIN ISO 272 | 1979-10 | Fasteners; Width across Flats for Hexagon Products More |
| DIN 3124 | 2007-11 | Hand-operated socket wrenches, square drive for hexagon screws More |
| ISO 1174-2 | 1996-12 | Assembly tools for screws and nuts - Driving squares - Part 2: Driving squares for power socket tools More |
