IS 1364-3 Hexagon Nuts, Style 1

IS 1364-3 Hexagon Nuts, Style 1

Washer-face form to be ordered separately
β = 15° to 30°
ø = 90° to 120°

Dimensions of IS 1364-3 Hexagon Nuts, Style 1 - Preferred Threads

Thread (d) M 1.6 M 2 M 2.5 M 3 M 4 M 5 M 6 M 8 M 10 M 12
pa 0.35 0.4 0.45 0.5 0.7 0.8 1 1.25 1.5 1.75
c max 0.2 0.2 0.3 0.40 0.40 0.50 0.50 0.60 0.60 0.60
min 0.1 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15
da max 1.84 2.3 2.9 3.45 4.6 5.75 6.75 8.75 10.8 13
min 1.60 2.0 2.5 3.00 4.0 5.00 6.00 8.00 10.0 12
dw min 2.4 3.1 4.1 4.60 5.9 6.90 8.9 11.6 14.6 16.6
e min 3.41 4.32 5.45 6.01 7.66 8.79 11.05 14.38 17.77 20.03
m max 1.30 1.60 2.00 2.40 3.2 4.70 5.2 6.80 8.40 10.80
min 1.05 1.35 1.75 2.15 2.9 4.40 4.9 6.44 8.04 10.37
mw min 0.8 1.1 1.4 1.7 2.3 3.50 3.9 5.2 6.4 8.3
s nom = max 3.20 4.00 5.00 5.50 7.00 8.00 10.00 13.00 16.00 18.00
min 3.02 3.82 4.82 5.32 6.78 7.78 9.78 12.73 15.73 17.73
Thread (d) M 16 M 20 M 24 M 30 M 36 M 42 M 48 M 56 M 64
pa 2 2.5 3 3.5 4 4.5 5 5.5 6
c max 0.8 0.8 0.8 0.8 0.8 1.0 1.0 1.0 1.0
min 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3
da max 17.3 21.6 25.9 32.4 38.9 45.4 51.8 60.5 69.1
min 16.0 20.0 24.0 30.0 36.0 42.0 48.0 56.0 64.0
dw min 22.5 27.7 33.3 42.8 51.1 60 69.5 78.7 88.2
e min 26.75 32.95 39.55 50.85 60.79 71.3 82.6 93.56 104.86
m max 14.8 18.0 21.5 25.6 31.0 34.0 38.0 45.0 51.0
min 14.1 16.9 20.2 24.3 29.4 32.4 36.4 43.4 49.1
mw min 11.3 13.5 16.2 19.4 23.5 25.9 29.1 34.7 39.3
s nom = max 24.00 30.00 36 46 55.0 65.0 75.0 85.0 95.0
min 23.67 29.16 35 45 53.8 63.1 73.1 82.8 92.8

Dimensions of IS 1364-3 Non-Preferred Threads

Thread (d) M 3.5 M 14 M 18 M 22 M 27 M 33 M 39 M 45 M 52 M 60
pa 0.6 2 2.5 2.5 3 3.5 4 4.5 5 5.5
c max 0.40 0.60 0.8 0.8 0.8 0.8 1.0 1.0 1.0 1.0
min 0.15 0.15 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3
da max 4.0 15.1 19.5 23.7 29.1 35.6 42.1 48.6 56.2 64.8
min 3.5 14.0 18.0 22.0 27.0 33.0 39.0 45.0 52.0 60.0
dw min 5 19.6 24.9 31.4 38 46.6 55.9 64.7 74.2 83.4
e min 6.58 23.36 29.56 37.29 45.2 55.37 66.44 76.95 88.25 99.21
m max 2.80 12.8 15.8 19.4 23.8 28.7 33.4 36.0 42.0 48.0
min 2.55 12.1 15.1 18.1 22.5 27.4 31.8 34.4 40.4 46.4
mw min 2 9.7 12.1 14.5 18 21.9 25.4 27.5 32.3 37.1
s nom = max 6.00 21.00 27.00 34 41 50 60.0 70.0 80.0 90.0
min 5.82 20.67 26.16 33 40 49 58.8 68.1 78.1 87.8

  • p is the pitch of the thread.

Specifications and reference standards

Material Steel Stainless steel Non-ferrous metal
General Requirements International Standard ISO 8992
Thread Tolerance 6H
International Standards ISO 724, ISO 965-1
Mechanical Properties Property Classa d <3 mm: as agreed
M3 ≤ d ≤ M39 : 6, 8, 10
d > M39 : as agreed 		d ≤ M24 : A2-70, A4-70
M24 < d ≤ M39 : A2-50, A4-50
d > M39 : as agreed		 Materials specified in ISO 8839
International Standard M3≤d ≤ M39 : ISO 898-2
d < M3 and d > M39: as agreed		 d ≤ M39 : ISO 3506-2
d > M39: as agreed
Tolerances Product grade d < M16 : A
d > M16 : B
International Standard ISO 4759-1
Finish and/or coating

As Processed

Requirements for electroplating are converted in ISO 4042.

Requirements for non-electrolytically applied zinc
flake coatings are converted in ISO 10683

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

Limits for surface discontinuities are covered in ISO 6157-2

 Plain Plain
Requirements for electroplating are covered in ISO 4042.
Acceptability For acceptance procedure, see ISO 3269
a  For other property classes see ISO 898-2 for steel and ISO 3506-2 for stainless steel respectively.