| 1. | General railway equipment . round screw threads . profile 铁路通用设备.圆螺纹.轮廓 |
| 2. | General railway equipment . round screw threads . verification 铁路通用设备.圆螺纹.验证 |
| 3. | General railway equipment . round screw threads . sizes and tolerances 铁路通用设备.圆螺纹.尺寸和公差 |
| 4. | Round screw thread with clearance and steep flank with pitch 7 mm ; nominal dimensions 螺距为7mm的带间隙和直侧面的圆螺纹.标称尺寸 |
| 5. | Round screw thread with clearance and flat flank with pitch 7 mm ; nominal dimensions 螺距为7mm的带间隙和直侧面的圆螺纹.第1部分:公称 |
| 6. | Round screw thread with clearance and flat flank with pitch 7 mm ; limiting dimensions of screw threads and allowances permissible deviations and permissible wear of screw thread gauges 螺距为7mm的带间隙和直侧面的圆螺纹.第2部分:螺纹 |
| 7. | Round screw thread with clearance and steep flank with pitch 7 mm ; limiting dimensions of screw threads and allowances - permissible deviations and permissible wear of screw thread gauges 螺距为7mm的带公差和斜侧面的圆螺纹.螺纹的极限尺寸 |