■ Unit : mm Unit : mm

Minor diameter of internal threads (D ) Bored hole size Minor diameter of internal threads (D ) Bored hole size

1 1

Size ( ref.)Size( ref.)
0.776.3318.136.6
0.816.5618.635.1
0.876.8519.0936.1
0.917.0919.637.1
0.977.3320.137.6
1.017.5620.637.1
1.137.8521.0938.1
1.218.0921.138.6
1.308.3322.137.6
1.418.6022.638.1
1.408.8523.0939.1
1.519.0923.140.1
1.509.3323.640.6
1.619.5624.0940.6
1.659.6024.641.1
1.7710.1024.142.1
1.8110.3325.143.1
1.9710.5625.643.6
1.9510.426.0943.1
2.0710.626.144.1
2.1110.8526.645.1
2.2011.0927.0946.1
2.2111.5626.646.6
2.3012.127.147.1
2.5612.628.148.1
2.7013.0928.648.6
2.9713.6029.09M52×547.29746.58747.1
3.2014.0930.1M52×448.27047.67048.1
3.3814.130.6M52×349.25248.75249.1
3.5614.629.6M52×250.21049.83550.1
3.8315.0930.1M52×1.550.67650.37650.6
4.0615.6031.1M55×451.27050.67051.1
4.2816.0931.6M55×352.25251.75252.1
4.5615.633.6M55×253.21052.83553.1
4.959 5.099 M5.5×0.5 5.0616.132.1M55×1.553.67653.37653.6
5.0916.633.1M56×5.550.79650.04650.6
5.3317.0934.1M56×452.27051.67052.1
5.5617.634.6M56×353.25252.75253.1
6.09D1: Minor diameter of 6H internal thread.M56×254.21053.83554.1
M56×1.554.67654.37654.6
  • D1: Minor diameter of 6H internal thread. The Minor diameters D1 shown in ( ) are of 5H for coarse threads and of 4H
  • 5H for fine threads.