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(Non-preferred) dimensions in parentheses.

Hexagon Nuts With Flange

DIN EN 1661 - 1998

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德标DIN EN 1661 - 1998 DIN EN1661 1661DIN  Hexagon Nuts With Flange

 *Models with different eras.

Screw Thread
d
M5 M6 M8 M10 M12 (M14) M16 M20
P Pitch
c min
da min
max
dc max
dw min
e min
m max
min
mw min
s max
min
r max
0.8 1 1.25 1.5 1.75 2 2 2.5
1 1.1 1.2 1.5 1.8 2.1 2.4 3
5.00 6.00 8.00 10.0 12.0 14.0 16.0 20.0
5.75 6.75 8.75 10.8 13.0 15.1 17.3 21.6
11.8 14.2 17.9 21.8 26.0 29.9 34.5 42.8
9.8 12.2 15.8 19.6 23.8 27.6 31.9 39.9
8.79 11.05 14.38 17.77 20.03 23.36 26.75 32.95
5.0 6.0 8.00 10.00 12.00 14.00 16.0 20.0
4.7 5.7 7.64 9.64 11.57 13.3 15.3 18.7
2.5 3.1 4.6 5.9 6.8 7.7 8.9 10.7
8.00 10.00 13.00 16.00 18.00 21.00 24.00 30.00
7.78 9.78 12.73 15.73 17.73 20.67 23.67 29.16
0.3 0.36 0.48 0.6 0.72 0.88 0.96 1.2
①,Material:
a)Steel, Strength class 8: D≤16, Type1 applicable to the mechanical property ; D > 16, Type2 applicable to the mechanical property. Strength class 10: Type1 applicable to the mechanical property. Strength class 12: Type2 applicable to the mechanical property. Standard EN 20898-2
b)Stainless steel, Strength class A2-70 Standard PrEN ISO 3506-2

Alternative history

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  • Material: carbon steel (plain carbon steel, medium carbon steel, alloy steel, etc.); Specifications: M6-M20; Surface treatment: galvanizing, hot galvanizing, mechanical galvanizing, Dacromet, phosphating, etc.

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