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Click Specification

Unit:mm

12-spline Flange Bolts

JB /T 6686 - 1993

Display drawing:

机械行业JB /T6686 - 1993 JB6686 6686JB 12-spline Flange Bolts
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Calculate weight and price. Weight 1000 pcs : kg x $ per kg = $ 1000 pcs
Default density g/cm3
×

Choose materials based on density.(g/cm3)

  • Carbon Steel 7.85
  • Stainless Steel 8.1
  • Stainless Steel 7.95
  • Stainless Steel 7.7
  • Titanium Alloy 4.5
  • Aluminum Alloy 2.8
  • Copper 8.89


Select here or enter material density on the calculation page.
Nominal Length L Tips:seclect Nominal Length L and get Weight Thread length.
Screw Thread
d
M6 M8 M10 M12 (M14) M16 (M18) M20 (M22) M24
P Pitch
c max
min
dc max
min
ds max
min
e min
k Nominal Size
max
min
s max
min
r max
min
z
1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 3
1.9 2.14 3.52 4.35 5.15 5.94 6.91 6.82 6.54 7.98
1.65 1.89 3.22 4.05 4.79 5.58 6.55 6.46 5.9 7.35
9.5 12.6 14.3 19 21.4 23.8 26.2 28.6 33.3 38.1
9.14 12.17 13.87 18.48 20.88 23.28 25.68 28.08 32.68 37.48
6 8 10 12 14 16 18 20 22 24
5.85 7.85 9.85 11.82 13.82 15.82 17.82 19.79 21.79 23.79
8.1 9.2 11.5 13.8 16.2 19.6 21.9 21.9 25.4 27.7
6.4 8 9.5 12.7 15 15.9 18 19 22.2 25.4
6.51 8.11 9.61 12.83 15.13 16.03 18.13 19.16 22.36 25.56
6.29 7.89 9.39 12.57 14.87 15.77 17.87 18.84 22.04 25.24
7 8 10 12 14 17 19 19 22 24
6.85 7.85 9.85 11.82 13.82 16.82 18.79 18.79 21.79 23.79
0.4 0.4 0.5 0.8 0.8 0.8 1 1 1 1.2
0.28 0.28 0.38 0.55 0.55 0.55 0.75 0.75 0.75 0.95
1 1.2 1.5 2 2 2 2.5 2.5 2.5 3
Weight of per 1000 steel products(≈kg)
- - - - - - - - - -
Length of Thread b
- - - - - - - - - -
Screw Thread
d
(M27) M30 (M33) M36 (M39) M42 (M45) M48 (M52)
P Pitch
c max
min
dc max
min
ds max
min
e min
k Nominal Size
max
min
s max
min
r max
min
z
3 3.5 3.5 4 4 4.5 4.5 5 5
7.98 9.21 9.62 10.82 12.71 12.56 15.65 16.1 16.1
7.35 8.78 9.19 10.39 12.28 12.13 15.13 15.58 15.58
38.1 42.8 47.5 52.3 57 61.7 66.5 76 76
37.48 42.18 46.88 51.56 56.26 60.96 65.76 75.26 75.26
27 30 33 36 39 42 45 48 52
26.79 29.79 32.75 35.75 38.75 41.75 44.75 47.75 51.7
27.7 34.6 36.9 41.6 47.3 47.3 53.1 57.7 57.7
25.4 28.7 31.8 35 38.1 41.2 44.5 50.8 50.8
25.56 28.96 32 35.2 38.3 41.4 44.7 51.03 51.03
25.24 28.54 31.6 34.8 37.9 41 44.3 50.57 50.57
24 30 32 36 41 41 46 50 50
23.79 29.79 31.75 35.75 40.75 40.75 45.75 49.75 49.75
1.2 1.4 1.6 1.6 1.8 1.8 2 2.2 2.2
0.95 1.15 1.35 1.35 1.55 1.55 1.75 1.82 1.82
4 4 4 5 5 5 6 6 6
Weight of per 1000 steel products(≈kg)
- - - - - - - - -
Length of Thread b
- - - - - - - - -
①,d1 ≈ 0.95s

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