is-1363-3
  • β = 15° to 30°
  • Countersink at start of thread permissible

Dimensions of IS 1363-3 Hexagon Nuts Preferred Threads

Threadpadw mine minmmw mins
MaxMinnom = MaxMin
M 50.86.78.635.64.43.587.64
M 618.710.896.44.93.7109.64
M 81.2511.514.27.96.45.11312.57
M 101.514.517.599.58.06.41615.57
M 121.7516.519.8512.210.48.31817.57
M 1622226.1715.914.111.32423.16
M 202.527.732.951916.913.53029.16
M 24333.339.5522.320.216.23635
M 303.542.850.8526.424.319.44645
M 36451.160.7931.929.423.25553.8
M 424.56071.334.932.425.96563.1
M 48569.582.638.936.429.17573.1
M 565.578.793.5645.943.434.78582.8
M 64688.2104.8652.449.439.59592.8

Dimensions of IS 1363-3 Hexagon Nuts Non-Preferred Threads

Threadpadw mine minmmw mins
MaxMinnom = MaxMin
M 14219.222.7813.912.19.72120.16
M 182.524.929.5616.915.112.12726.16
M 222.531.437.2920.218.114.53433
M 2733845.224.722.618.14140
M 333.546.655.3729.527.421.95049
M 39455.966.4434.331.825.46058.8
M 454.564.776.9536.934.427.57068.1
M 52574.288.2542.940.432.38078.1
M 605.583.499.2148.946.437.19097.8

Specification and reference standards

MaterialSteel
General requirementsInternational StandardISO 8992
ThreadTolerance7H
International StandardsISO 724, ISO 965-1
Mechanical propertiesProperty classad ≤M 16:5
M 16 < d ≤ M39:4,5
d > M39: as agreed
International Standardd ≤ M39: ISO 898-2
d > M39: as agreed
TolerancesProduct gradeC
International StandardISO 4759-1
Finish and/or coating

As processed

Requirements for electroplating are covered in ISO 10683

If different electroplating requirements are desired or if requirements are needed for other finishes, they should be agreed between customer and supplier.

AcceptabilityFor acceptance procedure, see ISO 3269 
For other property classes see ISO 898-2