Machinery's Handbook, 31st Edition
2030
Metric Screw Threads M Profile Table 13. External Metric Thread—M Profile Limiting Dimensions ANSI/ASME B1.13M-2005 (R2015)
Table 13. (Continued) External Metric Thread—M Profile Limiting Dimensions ANSI/ASME B1.13M-2005 (R2015)
Minor Dia. b d 1 Max.
Minor Dia. d d 3 Min.
Major Diameter b d
Pitch Diameter b , c d 2
Basic Thread Designation
Tol. Class
Allowance a es
Max. 15.962 16.000 15.962 15.968 16.000 15.968 16.974 17.000 16.974 17.968 18.000 17.968 19.958 20.000 19.958 19.968 20.000 19.968 19.974 20.000 19.974 21.958 22.000 21.968 22.000 21.968 23.952 24.000 23.952 23.962 24.000 23.962 24.968 25.000 24.968 26.952 27.000 26.962 27.000 26.962 29.947 30.000 29.947 29.962 30.000 29.962 29.968 30.000 29.968 32.962 33.000 32.962 34.968 35.000 35.940 36.000 35.940 35.962 36.000 35.962 38.962 39.000 38.962 39.968
Min.
Max.
Min.
Tol.
6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g 6h 6g
0.038 0.000 0.038 0.032 0.000 0.032 0.026 0.000 0.026 0.032 0.000 0.032 0.042 0.000 0.042 0.032 0.000 0.032 0.026 0.000 0.026 0.042 0.000 0.032 0.000 0.032 0.048 0.000 0.048 0.038 0.000 0.038 0.032 0.000 0.032 0.048 0.000 0.038 0.000 0.038 0.053 0.000 0.053 0.038 0.000 0.038 0.032 0.000 0.032 0.038 0.000 0.038 0.032 0.000 0.060 0.000 0.060 0.038 0.000 0.038 0.038 0.000 0.038 0.032
15.682 14.663 14.503 0.160 13.797 13.271 15.720 14.701 14.541 0.160 13.835 13.309 15.682 14.663 14.563 0.100 13.797 13.331 15.732 14.994 14.854 0.140 14.344 13.930 15.764 15.026 14.886 0.140 14.376 13.962 15.732 14.994 14.904 0.090 14.344 13.980 16.794 16.324 16.206 0.118 15.891 15.590 16.820 16.350 16.232 0.118 15.917 15.616 16.794 16.324 16.249 0.075 15.891 15.633 17.732 16.994 16.854 0.140 16.344 15.930 17.764 17.026 16.886 0.140 16.376 15.962 17.732 16.994 16.904 0.090 16.344 15.980 19.623 18.334 18.164 0.170 17.251 16.624 19.665 18.376 18.206 0.170 17.293 16.666 19.623 18.334 18.228 0.106 17.251 16.688 19.732 18.994 18.854 0.140 18.344 17.930 19.764 19.026 18.886 0.140 18.376 17.962 19.732 18.994 18.904 0.090 18.344 17.980 19.794 19.324 19.206 0.118 18.891 18.590 19.820 19.350 19.232 0.118 18.917 18.616 19.794 19.324 19.249 0.075 18.891 18.633 21.623 20.334 20.164 0.170 19.251 18.624 21.665 20.376 20.206 0.170 19.293 18.666 21.732 20.994 20.854 0.140 20.344 19.930 21.764 21.026 20.886 0.140 20.376 19.962 21.732 20.994 20.904 0.090 20.344 19.980 23.577 22.003 21.803 0.200 20.704 19.955 23.625 22.051 21.851 0.200 20.752 20.003 23.577 22.003 21.878 0.125 20.704 20.030 23.682 22.663 22.493 0.170 21.797 21.261 23.720 22.701 22.531 0.170 21.835 21.299 23.682 22.663 22.557 0.106 21.797 21.325 24.732 23.994 23.844 0.150 23.344 22.920 24.764 24.026 23.876 0.150 23.376 22.952 24.732 23.994 23.899 0.095 23.344 22.975 26.577 25.003 24.803 0.200 23.704 22.955 26.625 25.051 24.851 0.200 23.752 23.003 26.682 25.663 25.493 0.170 24.797 24.261 26.720 25.701 25.531 0.170 24.835 24.299 26.682 25.663 25.557 0.106 24.797 24.325 29.522 27.674 27.462 0.212 26.158 25.306 29.575 27.727 27.515 0.212 26.211 25.359 29.522 27.674 27.542 0.132 26.158 25.386 29.682 28.663 28.493 0.170 27.797 27.261 29.720 28.701 28.531 0.170 27.835 27.299 29.682 28.663 28.557 0.106 27.797 27.325 29.732 28.994 28.844 0.150 28.344 27.920 29.764 29.026 28.876 0.150 28.376 27.952 29.732 28.994 28.899 0.095 28.344 27.975 32.682 31.663 31.493 0.170 30.797 30.261 32.720 31.701 31.531 0.170 30.835 30.299 32.682 31.663 31.557 0.106 30.797 30.325 34.732 33.994 33.844 0.150 33.344 32.920 34.764 34.026 33.876 0.150 33.376 32.952 35.465 33.342 33.118 0.224 31.610 30.654 35.525 33.402 33.178 0.224 31.670 30.714 35.465 33.342 33.202 0.140 31.610 30.738 35.682 34.663 34.493 0.170 33.797 33.261 35.720 34.701 34.531 0.170 33.835 33.299 35.682 34.663 34.557 0.106 33.797 33.325 38.682 37.663 37.493 0.170 36.797 36.261 38.720 37.701 37.531 0.170 36.835 36.299 38.682 37.663 37.557 0.106 36.797 36.325 39.732 38.994 38.844 0.150 38.344 37.920
M16 × 2 M16 × 2 M16 × 2 M16 × 1.5 M16 × 1.5 M16 × 1.5 M17 × 1 M17 × 1 M17 × 1 M18 × 1.5 M18 × 1.5 M18 × 1.5 M20 × 2.5 M20 × 2.5 M20 × 2.5 M20 × 1.5 M20 × 1.5 M20 × 1.5 M20 × 1 M20 × 1 M20 × 1 M22 × 2.5 M22 × 2.5 M22 × 1.5 M22 × 1.5 M22 × 1.5 M24 × 3 M24 × 3 M24 × 3 M24 × 2 M24 × 2 M24 × 2 M25 × 1.5 M25 × 1.5 M25 × 1.5 M27 × 3 M27 × 3 M27 × 2 M27 × 2 M27 × 2 M30 × 3.5 M30 × 3.5 M30 × 3.5 M30 × 2 M30 × 2 M30 × 2 M30 × 1.5 M30 × 1.5 M30 × 1.5 M33 × 2 M33 × 2 M33 × 2 M35 × 1.5 M35 × 1.5 M36 × 4 M36 × 4 M36 × 4 M36 × 2 M36 × 2 M36 × 2 M39 × 2 M39 × 2 M39 × 2 M40 × 1.5
4g6g
4g6g
4g6g
4g6g
4g6g
4g6g
4g6g
4g6g
4g6g
4g6g
4g6g
4g6g
4g6g
4g6g
4g6g
4g6g
4g6g
4g6g 6h 6g 4g6g
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