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Unit:inch

Hex Bolts [Table 2] (ASTM A307 / A354 / A394)

ASME B 18.2.1 (T2) - 2012

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美标ASME B18.2.1 (T2) - 2012 ASME18.2.1 18 Hex Bolts [Table 2] (ASTM A307 / A354 / A394)
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美标ASME B18.2.1 (T2) - 2012 ASME18.2.1 18 Hex Bolts [Table 2] (ASTM A307 / A354 / A394)
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
d
1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2
PP UNC
UNF
8-UN
ds max
min
s max
min
e max
min
k max
min
r max
min
b Ref L≤6
L＞6
20 18 16 14 13 11 10 9 8 7 7 6 6
28 24 24 20 20 18 16 14 12 12 12 12 12
- - - - - - - - - 8 8 8 8
0.26 0.324 0.388 0.452 0.515 0.642 0.768 0.895 1.022 1.149 1.277 1.404 1.531
0.237 0.298 0.36 0.421 0.482 0.605 0.729 0.852 0.976 1.098 1.223 1.345 1.47
0.438 0.5 0.562 0.625 0.75 0.938 1.125 1.312 1.5 1.688 1.875 2.062 2.25
0.425 0.484 0.544 0.603 0.725 0.906 1.088 1.269 1.45 1.631 1.812 1.994 2.175
0.505 0.577 0.650 0.722 0.866 1.083 1.299 1.516 1.732 1.949 2.165 2.382 2.598
0.484 0.552 0.620 0.687 0.826 1.033 1.240 1.447 1.653 1.859 2.066 2.273 2.480
0.188 0.235 0.268 0.316 0.364 0.444 0.524 0.604 0.7 0.78 0.876 0.94 1.036
0.15 0.195 0.226 0.272 0.302 0.378 0.455 0.531 0.591 0.658 0.749 0.81 0.902
0.030 0.030 0.030 0.030 0.030 0.060 0.060 0.060 0.090 0.090 0.090 0.090 0.090
0.010 0.010 0.010 0.010 0.010 0.020 0.020 0.020 0.030 0.030 0.030 0.030 0.030
0.75 0.875 1 1.125 1.25 1.5 1.75 2 2.25 2.5 2.75 3 3.25
1 1.125 1.25 1.375 1.5 1.75 2 2.25 2.5 2.75 3 3.25 3.5
Weight of per 1000 steel products(≈kg) Reference only
- - - - - - - - - - - - -
Length of Thread b Reference only
- - - - - - - - - - - - -
Thread Size
d
1-5/8 1-3/4 1-7/8 2 2-1/4 2-1/2 2-3/4 3 3-1/4 3-1/2 3-3/4 4
PP UNC
UNF
8-UN
ds max
min
s max
min
e max
min
k max
min
r max
min
b Ref L≤6
L＞6
- 5 - 4-1/2 4-1/2 4 4 4 4 4 4 4
- - - - - - - - - - - -
8 8 8 8 8 8 8 8 8 8 8 8
1.658 1.785 1.912 2.039 2.305 2.559 2.827 3.081 3.335 3.589 3.858 4.111
1.591 1.716 1.839 1.964 2.214 2.461 2.711 2.961 3.21 3.461 3.726 3.975
2.438 2.625 2.812 3 3.375 3.75 4.125 4.5 4.875 5.25 5.625 6
2.356 2.538 2.719 2.9 3.262 3.625 3.988 4.35 4.712 5.075 5.437 5.8
2.815 3.031 3.248 3.464 3.897 4.330 4.763 5.196 5.629 6.062 6.495 6.928
2.616 2.893 3.099 3.306 3.719 4.133 4.546 4.959 5.372 5.786 6.198 6.612
1.116 1.196 1.276 1.388 1.548 1.708 1.869 2.06 2.251 2.38 2.572 2.764
0.978 1.054 1.13 1.175 1.327 1.479 1.632 1.815 1.936 2.057 2.241 2.424
0.090 0.120 0.120 0.120 0.19 0.190 0.190 0.190 0.190 0.190 0.190 0.190
0.030 0.040 0.040 0.040 0.06 0.060 0.060 0.060 0.060 0.060 0.060 0.060
3.5 3.75 4 4.25 4.75 5.25 5.75 6.25 6.75 7.25 7.75 8.25
3.75 4 4.25 4.5 5 5.5 6 6.5 7 7.5 8 8.5
Weight of per 1000 steel products(≈kg) Reference only
- - - - - - - - - - - -
Length of Thread b Reference only
- - - - - - - - - - - -
①,All bolts of nominal lengths equal to or shorter than b plus a length equivalent to 2.5 times the thread pitch for sizes up to and including 1 in., and 3.5 times the thread pitch for sizes larger than 1 in. shall be threaded for full length. The unthreaded length under the head and shall not exceed the length of 2.5 times the thread pitch for sizes up to and including 1 in. and 3.5 times the thread pitch for sizes larger than 1 in. 
②,b is a reference dimension tntended for calculation purposes only. When screw length L ≤ 6 in，b=2d+0.25；when L＞6 in，b=2d+0.5 。

Alternative history

ASME B 18.2.1T2 - 1996 ASME B 18.2.1T2 - 2010 ASME B 18.2.1T2 - 2012
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BS 916 - 1953 		Hexagon Bolts Faced Under Head, and Faced Under Head and Turned on Shank with B.S.Threads - Black [Table 2]
82 Hexagon Head Bolts - Product Grade C [GB]
GB /T 5780 - 2000 		Hexagon Head Bolts - Product Grade C
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85 Precision Hexagon Head Bolts - Washer Faced - B.S.W. & B.S.F. Threads [BS]
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94 Hexagon Screws for Manufacture of Railway and Tramway Rolling Stock - ISO Metric Coarse Thread - Finish A [UNI]
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99 Hexagon Head Screws - Product Grade C [GOST]
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