ANSI Socket Head Screw Engineering Dimensional Data Table Chart

Hardware ANSI Engineering Data

ANSI Socket Head Screw Engineering Dimensional Data Table Chart per ASME / ANSI B18.3 and ASTM A574.

All dimensional data is given in inches.

ANSI Socket Head Screw Engineering Dimensional Data Table Chart

Basic Diameter A
Head Dia.
H
Head Height
S
Side Height
J
Hex Size
T
Key Engage
F
Fillet Radius
NO.0 0.096 0.060 0.054 0.051 0.025 0.002
NO.1 0.1180 0.0730 0.0660 0.0635 0.031 0.003
NO.2 0.140 0.086 0.077 0.079 0.038 0.003
NO.3 0.161 0.099 0.089 0.079 0.044 0.004
NO.4 0.183 0.112 0.101 0.0952 0.051 0.004
NO.5 0.205 0.125 0.112 0.0952 0.057 0.005
NO.6 0.226 0.138 0.124 0.1111 0.064 0.005
NO.8 0.2700 0.1640 0.1480 0.1426 0.077 0.006
NO.10 0.312 0.190 0.171 0.1587 0.090 0.006
.25 0.375 0.250 0.225 0.190 0.120 0.007
.3125 0.469 0.313 0.281 0.253 0.151 0.009
.375 0.5620 0.3750 0.3370 0.3160 0.1820 0.0120
.4375 0.656 0.438 0.394 0.379 0.213 0.014
.5 0.750 0.500 0.450 0.379 0.245 0.016
.625 0.938 0.625 0.562 0.505 0.307 0.021
.75 1.125 0.7500 0.675 0.631 0.370 0.025
.875 1.312 0.875 0.787 0.757 0.432 0.031
1 1.500 1.000 0.900 0.757 0.495 0.034
1.125 1.688 1.125 1.012 0.885 0.557 0.039
1.25 1.875 1.250 1.125 0.885 0.620 0.044
1.375 2.062 1.375 1.237 1.010 0.682 0.048
1.5 2.250 1.500 1.350 1.010 0.745 0.052
1.75 2.625 1.750 1.575 1.265 0.870 0.062
2 3.000 2.000 1.800 1.515 0.995 0.071
2.25 3.375 2.250 2.025 1.765 1.120 0.080
2.5 3.750 2.500 2.250 1.765 1.245 0.088
2.75 4.125 2.750 2.475 2.015 1.370 0.097
3 4.500 3.000 2.700 2.265 1.495 0.106
3.25 4.875 3.250 2.925 2.265 1.620 0.114
3.5 5.250 3.500 3.150 2.765 1.745 0.124
3.75 5.625 3.750 3.375 2.765 1.870 0.134

4

6.000 4.000 3.600 3.015

1.995

0.143

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