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Square Head Bolts [Table 1] (ASTM A307 / A354 / A394)

ASME B 18.2.1 - 2012

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美标ASME B18.2.1 - 2012 ASME18.2.1 18.2.1A Square Head Bolts [Table 1] (ASTM A307 / A354 / A394)
美标ASME B18.2.1 - 2012 ASME18.2.1 18.2.1A Square Head Bolts [Table 1] (ASTM A307 / A354 / A394)
Screw Thread
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
d
PP UNC
ds max
min
s Nominal Size
max
min
e max
min
k Nominal Size
max
min
r max
min
b L≤6
L>6
0.2500 0.3125 0.3750 0.4375 0.5000 0.6250 0.7500 0.8750 1.0000 1.1250 1.2500 1.3750 1.5000
20 18 16 14 13 11 10 9 8 7 7 6 6
0.260 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 0.360 0.421 0.482 0.605 0.729 0.852 0.976 1.098 1.223 1.345 1.470
3/8 1/2 9/16 5/8 3/4 15/16 1-1/8 1-5/16 1-1/2 1-11/16 1-7/8 2-1/16 2-1/4
0.375 0.500 0.562 0.625 0.750 0.938 1.125 1.312 1.500 1.688 1.875 2.062 2.250
0.362 0.484 0.544 0.603 0.725 0.906 1.088 1.269 1.450 1.631 1.812 1.994 2.175
0.530 0.707 0.795 0.884 1.061 1.326 1.591 1.856 2.121 2.386 2.652 2.917 3.182
0.498 0.665 0.747 0.828 0.995 1.244 1.494 1.742 1.991 2.239 2.489 2.738 2.986
11/64 13/64 1/4 19/64 21/64 27/64 1/2 19/32 21/32 3/4 27/32 29/32 1
0.188 0.220 0.268 0.316 0.348 0.444 0.524 0.620 0.684 0.780 0.876 0.940 1.036
0.156 0.186 0.232 0.278 0.308 0.400 0.476 0.568 0.628 0.720 0.812 0.872 0.964
0.03 0.03 0.03 0.03 0.03 0.06 0.06 0.06 0.09 0.09 0.09 0.09 0.09
0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.03
0.750 0.875 1.000 1.125 1.250 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.250
1.000 1.125 1.250 1.375 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.250 3.500

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  • Material: carbon steel; Specifications: M5-M24; Length: 20mm~250mm;Surface treatment: nature, black, galvanized, rohs, hot galvanized, dacromet; Grade: 4.8~12.9

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