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Unit:mm

Double End Studs b1=1.5d

GB 899 - 1988

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国标GB 899 - 1988 GB899 899GB Double End Studs b1=1.5d
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国标GB 899 - 1988 GB899 899GB Double End Studs b1=1.5d
Download CAD Model
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.
Thread Size
M2 M2.5 M3 M4 M5 M6 M8 M10 M12 (M14) M16
P Coarse pitch
Fine pitch 1
Fine pitch 2
bm Nominal Size
min
max
ds max
min
0.4 0.45 0.5 0.7 0.8 1 1.25 1.5 1.75 2 2
/ / / / / / 1 1.25 1.5 1.5 1.5
/ / / / / / / 1 1.25 / /
3 3.5 4.5 6 8 10 12 15 18 21 24
2.4 2.9 3.9 5.4 7.25 9.25 11.1 14.1 17.1 19.95 22.95
3.6 4.1 5.1 6.6 8.75 10.75 12.9 15.9 18.9 22.05 25.05
2 2.5 3 4 5 6 8 10 12 14 16
1.75 2.25 2.75 3.7 4.7 5.7 7.64 9.64 11.57 13.57 15.57
Weight of per 1000 steel products(≈kg)
- - - - - - - - - - -
Length of Thread b
- - - - - - - - - - -
Thread Size
(M18) M20 (M22) M24 (M27) M30 (M33) M36 (M39) M42 M48
P Coarse pitch
Fine pitch 1
Fine pitch 2
bm Nominal Size
min
max
ds max
min
2.5 2.5 2.5 3 3 3.5 3.5 4 4 4.5 5
1.5 1.5 1.5 2 2 2 2 3 3 4 4
/ 2 2 / / / / / / / /
27 30 33 36 40 45 49 54 58 63 72
25.95 28.95 32.75 34.75 38.75 43.75 47.75 53.5 56.5 61.5 70.5
28.05 31.05 34.25 37.25 41.25 46.25 50.25 55.5 59.5 64.5 73.5
18 20 22 24 27 30 33 36 39 42 48
17.57 19.48 21.48 23.48 26.48 29.48 32.38 35.38 38.38 41.38 47.38
Weight of per 1000 steel products(≈kg)
- - - - - - - - - - -
Length of Thread b
- - - - - - - - - - -
①,ds ≈ pitch diameter of thread(only for type B); 
②,Xmax=2.5P (changed from 1.5P to 2.5P according to Amendment No.1)

Alternative history

GB /T 899 - 1988
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