Limits for standard course threads

according to ISO 965

 Length of thread engagementMajor diameterMinor diameterPitchPitch diameterThread root radius
FromToMaxMinMaxNominalMaxMinMin
ThreadM1.0*0.61.710.9330.6930.250.8380.7850.031
M1.2*0.61.71.21.1330.8930.251.0380.9850.031
M1.4*0.721.41.3251.0320.31.2051.1490.038
M1.6*0.82.61.5811.4961.1510.351.3541.2910.044
M1.8*0.82.61.7811.6961.3520.351.5541.4910.044
M2.0131.9811.8861.490.41.7211.6540.05
M2.51.33.82.482.381.9280.452.1882.1170.056
M3.01.54.52.982.8742.3670.52.6552.580.063
M3.51.753.4793.3542.7430.63.0893.0040.075
M4.0263.9783.8383.1190.73.5233.4330.088
M5.02.57.54.9764.8263.9950.84.4564.3610.1
M6.0395.9745.7944.74715.3245.2120.125
M8.04127.9727.766.4381.257.167.0420.156
M10.05159.9689.7328.1281.58.9948.8620.188
M12.061811.96611.7019.8191.7510.82910.6790.219
M14.082413.96213.68211.508212.66312.5030.25
M16.082415.96215.68213.508214.66314.5030.25
M18.0103017.59817.62314.8912.516.33416.1640.313
M20.0103019.95819.62316.8912.518.33418.1640.313
M22.0103021.59821.62318.8912.520.33420.1640.313
M24.0123623.95223.57720.271322.00321.8030.375
M27.0123626.95226.57723.271325.00324.8030.375
M30.0154529.94729.52225.6583.527.67427.4620.438

Nuts, Tolerance 6H (*5)

 Length of threadMinor diameterPitchPitch Diameter
FromToMaxMinNominalMaxMin
ThreadM1.00.61.70.7850.7290.250.8940.838
M1.20.61.70.9850.9290.251.0941.038
M1.40.721.1421.0750.31.2651.205
M1.60.82.61.3211.2210.351.4581.373
M1.80.82.61.5211.4210.351.6581.573
M2.0131.6791.5670.41.831.74
M2.51.33.82.1382.0130.452.3032.208
M3.01.54.52.5992.4590.52.7752.675
M3.51.753.012.850.63.2223.11
M4.0263.4223.2420.73.6633.545
M5.02.57.54.3344.1340.84.6054.48
M6.0395.1534.91715.55.35
M8.04126.9126.6471.257.3487.188
M10.05158.6768.3761.59.2069.026
M12.061810.44110.1061.7511.06310.863
M14.082412.2111.835212.91312.701
M16.082414.2113.835214.91314.701
M18.0103015.74415.2942.516.916.376
M20.0103017.74417.2942.518.618.376
M22.0103019.74419.2942.520.620.376
M24.0123621.25220.752322.31622.051
M27.0123624.25223.752325.31625.051
M30.0154526.77126.2113.528.00727.727

Selection series for standard threads (ISO 262)

Nominal DiameterPitch
Series 1Series 2
1.0-0.25
1.2-0.25
-1.40.30
1.6-0.35
-1.80.35
2.0-0.40
2.5-0.45
3.0-0.50
-3.50.60
4.0-0.70
5.5-0.80
6.0-1.0
-71.0
8.0-1.25
10.0-1.50
12.0-1.75
-142.00
16.0-2.00
-182.50
20.0-2.50
-222.50
24.0-3.0
-273.0
30.0-3.5
-333.5
36.0-4.0
-394.0
42?-4.5
-45?4.5
48?-5.0
-52?5.0

 All data is in mm

Note: Due to the fact that fastening applications differ greatly, the above information is for guidance only and is correct to the best of our knowledge. The customer must satisfy themselves with the performance of the fastener and validity of the data. TR Fastenings will not be held responsible for any failure that may occur from the use of this information.