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Unit:mm

Hexgon Nuts, Style 1 - Fine Pitch Thread - Product Grade A and B

GB 6171 - 1986

Display drawing:

国标GB 6171 - 1986 GB6171 6171GB Hexgon Nuts, Style 1 - Fine Pitch Thread - Product Grade A and B
Download CAD Model*

 *Models with different eras.

Thread Size
D
M8 M10 M12 M16 M20 M24 M30 M36 M42 M48 M56 M64
c max
da max
min
dw min
e min
m max
min
m1 min
m2 min
s max=nominal size
min
0.6 0.6 0.6 0.8 0.8 0.8 0.8 0.8 1.0 1.0 1.2 1.2
8.75 10.80 13.00 17.30 21.60 25.90 32.40 38.90 45.40 51.80 60.50 69.10
8.00 10.00 12.00 16.00 20.00 24.00 30.00 36.00 42 48.00 56.00 64.00
11.6 14.6 16.6 22.5 27.70 33.2 42.7 51.1 60.6 69.4 78.7 88.2
14.38 17.77 20.03 26.75 32.95 39.55 50.85 60.79 72.09 82.6 93.56 104.86
6.8 8.4 10.8 14.8 18 21.5 25.6 31 34 38 45 51
6.44 8.04 10.37 14.1 16.9 20.2 24.3 29.4 32.4 36.4 43.4 49.1
5.2 6.4 8.30 11.3 13.5 16.2 19.4 23.5 25.9 29.1 34.7 39.3
4.5 5.6 7.3 9.9 11.8 14.1 17 20.6 22.7 25.5 30.4 34.4
13 16 18 24 30 36 46 55 65 75 85 95
12.73 15.73 17.73 23.67 29.16 35 45 53.8 63.8 73.1 82.8 92.8
Thread Size
D
(M10) (M12) (M14) (M18) (M20) (M22) (M27) (M33) (M39) (M45) (M52) (M60)
c max
da max
min
dw min
e min
m max
min
m1 min
m2 min
s max=nominal size
min
0.6 0.6 0.6 0.8 0.8 0.8 0.8 0.8 0.8 1.0 1.0 1.2
10.80 13.00 15.10 19.50 21.60 23.70 29.10 35.60 42.10 48.60 56.20 64.80
10.00 12.00 14.00 18.00 20.00 22.00 27.00 33.00 39.00 45.00 52.00 60.00
14.6 16.6 19.6 24.8 27.70 31.4 38.00 46.6 55.9 64.70 74.20 83.4
17.77 20.03 23.35 29.56 32.95 35.03 45.2 55.37 66.44 76.95 88.25 99.21
8.4 10.8 12.8 15.8 18 19.4 23.8 28.7 33.4 36 42 48
8.04 10.37 12.1 15.1 16.9 18.1 22.5 27.4 31.8 34.4 40.4 46.4
6.4 8.3 9.7 12.1 13.5 14.5 18.00 21.9 25.4 27.5 32.3 37.1
5.6 7.3 8.5 10.6 11.8 12.7 15.8 19.2 22.3 24.1 28.3 32.5
16 18 21 27 30 32 41 50 60 70 80 90
15.73 17.73 20.67 26.16 29.16 31 40 49 58.8 68.1 78.1 87.8
①,Non-preferred specifications in "（）"

Alternative history

GB 6171 - 1986 GB /T 6171 - 2000 GB /T 6171 - 2016
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