| 1. | Mechanical and quality requirements for machine screws 机器螺钉的机械和质量要求 |
| 2. | Slotted head machine screws for precision instruments 精密仪器用槽头机螺钉 |
| 3. | Nickel - plated mild steel round head machine screw 镀镍低碳钢圆头机器螺丝 |
| 4. | Brass - plated mild steel round head machine screw 镀黄铜圆头软钢机器螺丝 |
| 5. | Machine screws and nuts for spectacle frames 眼镜框架用机制小螺钉和螺母 |
| 6. | Torque - limited semi - automatic device for machining screw thread 限定扭矩式半自动攻丝装置 |
| 7. | Specification for unified machine screws and machine screw nuts 统一机用螺钉与机用螺母规范 |
| 8. | Slotted and recessed head machine screws and machine screw nuts 有槽和凹槽头机器螺钉和机器螺母 |
| 9. | Galvanized mild steel round head machine screw 镀锌圆头机器螺丝 |
| 10. | Spiral groove machine screws taper shank tools such as milling units 机丝锥柄立铣刀等工具厂家。 |