External Metric ISO Thread Table Chart Sizes M80 - M100

ISO Hardware Engineering Data
Hardware Supplier and Manufacturers 
 Fastener and Screw / Bolt Design, Formula and Calculations

The following are metric external thread size table chart for sizes M 80 to M 100 per. ANSI/ASME B1.13M-1995. These thread sizes and classes represent bolts and screws, as well, as other standard external threads. Do not use these values for standard metric internal thread designs. All units in mm.

ISO Metric
Thread Designation
Pitch
External Threads
Tolerance Class
Major Dia
Pitch Dia
Minor Dia
Max
Min
Max
Min
Max
Min
M80x6
6
6g
79.920
79.320
76.023
75.743
73.425
72.047
M80x6
6
4g6g
79.920
79.320
76.023
75.843
73.425
72.147
M80x4
4
6g
79.940
79.340
77.342
77.106
75.610
74.642
M80x4
4
4g6g
79.940
79.340
77.342
77.192
75.610
74.728
M80x3
3
6g
79.952
79.577
78.003
77.791
76.704
75.943
M80x3
3
4g6g
79.952
79.577
78.003
77.871
76.704
76.023
M80x2
2
6g
79.962
79.682
78.663
78.483
77.797
77.251
M80x2
2
4g6g
79.962
79.682
78.663
78.551
77.797
77.319
M80x1.5
1.5
6g
79.968
79.732
78.994
78.834
78.344
77.910
M80x1.5
1.5
4g6g
79.968
79.732
78.994
78.894
78.334
77.970
M80x1
1
6g
79.974
79.794
79.324
79.184
78.891
78.568
M80x1
1
4g6g
79.974
79.794
79.324
79.234
78.891
78.618
M82x2
2
6g
81.962
81.682
80.663
80.483
79.797
79.251
M82x2
2
4g6g
81.962
81.682
80.663
80.551
79.797
79.319
M85x6
6
6g
84.920
84.320
81.023
80.743
78.425
77.047
M85x6
6
4g6g
84.920
84.320
81.023
80.843
78.425
77.147
M85x4
4
6g
84.940
84.465
82.342
82.106
80.610
79.642
M85x4
4
4g6g
84.940
84.465
82.342
82.192
80.610
79.728
M85x3
3
6g
84.952
84.577
83.003
82.791
81.704
80.943
M85x3
3
4g6g
84.952
84.577
83.003
82.871
81.704
81.023
M85x2
2
6g
84.962
84.682
83.663
83.483
82.797
82.251
M85x2
2
4g6g
84.962
84.682
83.663
83.551
82.797
82.319
M85x1.5
1.5
6g
84.968
84.732
83.994
83.834
83.344
82.910
M85x1.5
1.5
4g6g
84.968
84.732
83.994
83.894
83.344
82.970
M90x6
6
6g
89.920
89.320
86.023
85.743
83.425
82.047
M90x6
6
4g6g
89.920
89.320
86.023
85.843
83.425
82.147
M90x4
4
6g
89.940
89.465
87.342
87.106
85.610
84.642
M90x4
4
4g6g
89.940
89.465
87.342
87.192
85.610
84.728
M90x3
3
6g
89.952
89.577
88.003
87.791
86.704
85.943
M90x3
3
4g6g
89.952
89.577
88.003
87.871
86.704
86.023
M90x2
2
6g
89.962
89.682
88.663
88.483
87.797
87.251
M90x2
2
4g6g
89.962
89.682
88.663
88.551
87.797
87.319
M90x1.5
1.5
6g
89.968
89.732
88.994
88.834
88.344
87.910
M90x1.5
1.5
4g6g
89.968
89.732
88.994
88.894
88.344
87.970
M95x6
6
6g
94.920
94.320
91.023
90.723
88.425
87.027
M95x6
6
4g6g
94.920
94.320
91.023
90.833
88.425
87.137
M95x4
4
6g
94.940
94.465
92.342
92.092
90.610
89.628
M95x4
4
4g6g
94.940
94.465
92.342
92.182
90.610
89.718
M95x3
3
6g
94.952
94.577
93.003
92.779
91.704
90.931
M95x3
3
4g6g
94.952
94.577
93.003
92.863
91.704
91.015
M95x2
2
6g
94.962
94.682
93.663
93.473
92.797
92.241
M95x2
2
4g6g
94.962
94.682
93.663
93.545
92.797
92.313
M95x1.5
1.5
6g
94.968
94.732
93.994
93.814
93.344
92.890
M95x1.5
1.5
4g6g
94.968
94.732
93.994
93.882
93.344
92.958
M100x6
6
6g
99.920
99.320
96.023
95.723
93.425
92.027
M100x6
6
4g6g
99.920
99.320
96.023
95.833
93.425
92.137
M100x4
4
6g
99.940
99.465
97.342
97.092
95.610
94.628
M100x4
4
4g6g
99.940
99.465
97.342
97.182
95.610
94.718
M100x3
3
6g
99.952
99.577
98.003
97.779
96.704
95.931
M100x3
3
4g6g
99.952
99.577
98.003
97.863
96.704
96.015
M100x2
2
6g
99.962
99.682
98.663
98.473
97.797
97.241
M100x2
2
4g6g
99.962
99.682
98.663
98.545
97.797
97.313
M100x1.5
1.5
6g
99.968
99.732
98.994
98.814
98.344
97.890
M100x1.5
1.5
4g6g
99.968
99.732
98.994
98.882
98.344
97.958

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