NF E 25-451 - 2001 Hexagon Nuts, Style 1, With Fine Pitch Thread - Product Grades A And B


Unit: mm
Screw Thread
d
M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30
P Pitch Fine thread
Very fine thread
k max
min
s max
min
1 1.25 1.5 1.5 1.5 1.5 2 / 2 2 2
/ 1 1.25 / / / 1.5 1.5 / / /
6.8 8.4 10.8 12.8 14.8 15.8 18 19.4 21.5 23.8 25.6
6.44 8.04 10.37 12.1 14.1 15.1 16.9 18.1 20.2 22.5 24.3
13 16 18 21 24 27 30 34 36 41 46
12.73 15.73 17.73 20.67 23.67 26.16 29.16 33 35 40 45
Screw Thread
d
M33 M36 M39 M42 M45 M48 M52 M56 M60 M64
P Pitch Fine thread
Very fine thread
k max
min
s max
min
2 3 3 3 3 3 4 4 4 4
/ / / / / / / / / /
28.7 31 33.4 34 36 38 42 45 48 51
27.4 29.4 31.8 32.4 34.4 36.4 40.4 43.4 46.4 49.1
50 55 60 65 70 75 80 85 90 95
49 53.8 58.8 63.1 68.1 73.1 78.1 82.8 87.8 92.8
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