ISO 8673

Hexagon regular nuts

With metric fine pitch thread

tech-iso8673




Thread Size M8 M10 M12
P Pitch Fine thread-1 1 1 1.5
Fine thread-2 - -1.25 -1.25
c max 0.6 0.6 0.6
min 0.15 0.15 0.15
da max 8.75 10.8 13
min 8 10 12
dw min 11.63 14.63 16.63
e min 14.38 17.77 20.03
m max 6.8 8.4 10.8
min 6.44 8.04 10.37
mw min 5.15 6.43 8.3
s max=nominal size 13 16 18
min 12.73 15.73 17.73

Thread Size (M14) M16 (M18)
P Pitch Fine thread-1 1.5 1.5 1.5
Fine thread-2 - - -
c max 0.6 0.8 0.8
min 0.15 0.2 0.2
da max 15.1 17.3 19.5
min 14 16 18
dw min 19.64 22.49 24.85
e min 23.36 26.75 29.56
m max 12.8 14.8 15.8
min 12.1 14.1 15.1
mw min 9.68 11.28 12.08
s max=nominal size 21 24 27
min 20.67 23.67 26.16

Thread Size M20 (M22) M24
P Pitch Fine thread-1 2 1.5 2
Fine thread-2 -1.5 - -
c max 0.8 0.8 0.8
min 0.2 0.2 0.2
da max 21.6 23.7 25.9
min 20 22 24
dw min 27.7 31.35 33.25
e min 32.95 37.29 39.55
m max 18 19.4 21.5
min 16.9 18.1 20.2
mw min 13.52 14.48 16.16
s max=nominal size 30 34 36
min 29.16 33 35

Thread Size (M27) M30 (M33)
P Pitch Fine thread-1 2 2 2
Fine thread-2 - - -
c max 0.8 0.8 0.8
min 0.2 0.2 0.2
da max 29.1 32.4 35.6
min 27 30 33
dw min 38 42.75 46.55
e min 45.2 50.85 55.37
m max 23.8 25.6 28.7
min 22.5 24.3 27.4
mw min 18 19.44 21.92
s max=nominal size 41 46 50
min 40 45 49

Thread Size M36 (M39) M42
P Pitch Fine thread-1 3 3 3
Fine thread-2 - - -
c max 0.8 1 1
min 0.2 0.3 0.3
da max 38.9 42.1 45.4
min 36 39 42
dw min 51.11 55.86 59.95
e min 60.79 66.44 71.3
m max 31 33.4 34
min 29.4 31.8 32.4
mw min 23.52 25.44 25.92
s max=nominal size 55 60 65
min 53.8 58.8 63.1

Thread Size (M45) M48 (M52)
P Pitch Fine thread-1 3 3 4
Fine thread-2 - - -
c max 1 1 1
min 0.3 0.3 0.3
da max 48.6 51.8 56.2
min 45 48 52
dw min 64.7 69.45 74.2
e min 76.95 82.6 88.25
m max 36 38 42
min 34.4 36.4 40.4
mw min 27.52 29.12 32.32
s max=nominal size 70 75 80
min 68.1 73.1 78.1

Thread Size M56 (M60) M64
P Pitch Fine thread-1 4 4 4
Fine thread-2 - - -
c max 1 1 1
min 0.3 0.3 0.3
da max 60.5 64.8 69.1
min 56 60 64
dw min 78.66 83.41 88.16
e min 93.56 99.21 104.86
m max 45 48 51
min 43.4 46.4 49.1
mw min 34.72 37.12 39.28
s max=nominal size 85 90 95
min 82.8 87.8 92.8



All information is strictly informative