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Unit:mm

Hexagon Head Bolts with Fine Pitch Thread - Full Thread

GB 5786 - 1986

Display drawing:

国标GB 5786 - 1986 GB5786 5786GB Hexagon Head Bolts with Fine Pitch Thread - Full Thread
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 *Models with different eras.

Thread Size
d
M8 M10 M12 M16 M20 M24 M30 M36 M42 M48 M56 M64
P Pitch-1
Pitch-2
a max
min
c max
min
da max
dw Grade A min
Grade B min
e Grade A min
Grade B min
k Nominal Size
Grade A min
max
Grade B min
max
k1 Grade A min
Grade B min
r
s max=nominal size
Grade A min
Grade B min
1 1 1.5 1.5 2 2 2 3 3 3 4 4
- (1.25) (1.25) - (1.5) - - - - - - -
3 3.75 4.5 4.5 4.5 6 6 9 9 9 12 12
1 1.25 1.25 1.5 1.5 2 2 3 3 3 4 4
0.6 0.6 0.6 0.8 0.8 0.8 0.8 0.8 1 1 1 1
0.15 0.15 0.15 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3
9.2 11.2 13.7 17.7 22.4 26.4 33.4 39.4 45.6 52.6 63 71
11.6 14.6 16.6 22.5 28.2 33.6 - - - - - -
11.4 14.4 16.4 22 27.7 33.2 42.7 51.1 60.6 69.4 78.7 88.2
14.38 17.77 20.03 26.75 33.53 39.98 - - - - - -
14.2 17.59 19.85 26.17 32.95 39.55 50.85 60.79 72.02 82.6 93.56 104.86
5.3 6.4 7.5 10 12.5 15 18.7 22.5 26 30 35 40
5.15 6.22 7.32 9.82 12.28 14.78 - - - - - -
5.45 6.58 7.68 10.18 12.72 15.22 - - - - - -
5.06 6.11 7.21 9.71 12.15 14.65 18.28 22.08 25.58 29.58 34.5 39.5
5.54 6.69 7.79 10.29 12.85 15.35 19.12 22.92 26.42 30.42 35.5 40.5
3.6 4.4 5.1 6.9 8.6 10.3 - - - - - -
3.5 4.3 5 6.8 8.5 10.2 12.8 15.5 17.9 20.9 24.2 27.6
0.4 0.4 0.6 0.6 0.8 0.8 1 1 1.2 1.6 2 2
13 16 18 24 30 36 46 55 65 75 85 95
12.73 15.73 17.73 23.67 29.67 35.38 - - - - - -
12.57 15.57 17.57 23.16 29.16 35 45 53.8 63.8 73.1 82.8 92.8

Alternative history

GB 5786 - 1986 GB /T 5786 - 2000 GB /T 5786 - 2016

Suppliers

Best price if from GlobalFastener.com.
Ningbo SiTuo Fastener Co., Ltd

  • Petty Cao

  • +86-15381997760

  • Material: carbon steel, stainless steel; Grade: 4.8, 8.8, 10.9, 12.9; Surface treatment: according to customer requirements; Complete specifications, non-standard customization.
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