板牙套丝时圆杆的直径
粗牙普通螺纹
螺纹直径（毫米）M6M8M10M12M14M16M18M20M22M24M27M30M36M42M48M52M60MM68螺距（毫米）11.251.51.75222.52.52.5333.544.5555.566螺杆直径
英制螺纹
圆柱管螺纹
螺杆直径螺杆直径
螺纹直螺纹直
最小直最大直径（英最小直最大直径（英最小直最大直径（毫径（毫寸）径（毫径（毫寸）径（毫径（毫米）米）米）米）米）米）5.85.91/45.961/.49.57.87.95/167.47.61/412.7139.759.853/9.23/816.216.511.7511.91/21212.21/220.520.813.713.85-5/822.522.815.715.855/815.215.43/42626.317.717.85-7/829.830.119.719.853/418.318.5132.833.111/821.721.857/821.421.637.437.723.6526.6529.635.1.554751.559.4563.467.423.826.829.835.841.7547.751.759.763.767.7111/4-11/23737.324.530.724.83111/413/811/241.443.847.341.744.147.6
