SOCKET HEAD SHOULDER SCREWS ANSI/ASME 1986 |
Nominal Size or Basic Shoulder Diameter |
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Shoulder Diameter(D) |
Head Dia.(A) |
Head Height(H) |
Head Side Height(S) |
Hex Socket Size(J) |
Key
Engagement(T) |
Head Fillet Extension(M) |
Head Fillet Radius(R) | ||||||
Max |
Min |
Max |
Min |
Max |
Min |
Min |
Nominal |
Min |
Max |
Min | |||
1/4 |
.250 |
.2480 |
.2460 |
.375 |
.357 |
.188 |
.177 |
.157 |
1/8 |
.125 |
.094 |
.014 |
.009 |
5/16 |
.3125 |
.3105 |
.3085 |
.438 |
.419 |
.219 |
.209 |
.183 |
5/32 |
.156 |
.117 |
.017 |
.012 |
3/8 |
.3750 |
.3730 |
.3710 |
.562 |
.543 |
.250 |
.240 |
.209 |
3/16 |
.188 |
.141 |
.020 |
.015 |
1/2 |
.5000 |
.4980 |
.4960 |
.750 |
.729 |
.312 |
.302 |
.262 |
1/4 |
.250 |
.188 |
.026 |
.020 |
5/8 |
.6250 |
.6230 |
.6210 |
.875 |
.853 |
.375 |
.365 |
.315 |
5/16 |
.312 |
.234 |
.032 |
.024 |
3/4 |
.7500 |
.7480 |
.7460 |
1.000 |
.977 |
.500 |
.490 |
.421 |
3/8 |
.375 |
.281 |
.039 |
.030 |
1 |
1.000 |
.9980 |
.9960 |
1.312 |
1.287 |
.625 |
.610 |
.527 |
1/2 |
.500 |
.375 |
.050 |
.040 |
1-1/4 |
1.250 |
1.2480 |
1.2460 |
1.750 |
1.723 |
.750 |
.735 |
.633 |
5/8 |
.625 |
.469 |
.060 |
.050 |
1-1/2 |
1.500 |
1.4980 |
1.4960 |
2.125 |
2.095 |
1.000 |
.980 |
.842 |
7/8 |
.875 |
.656 |
.070 |
.060 |
1-3/4 |
1.750 |
1.7480 |
1.7460 |
2.375 |
2.345 |
1.125 |
1.105 |
.948 |
1 |
1.000 |
.750 |
.080 |
.070 |
2 |
2.000 |
1.9980 |
1.9960 |
2.750 |
2.720 |
1.250 |
1.230 |
1.054 |
1-1/4 |
1.250 |
.937 |
.090 |
.080 |
Nominal
Size or Basic Shoulder Diameter |
Shoulder Neck Diameter(K) |
Shoulder Neck Width(F) |
Nominal Thread Size or Basic Thread Diameter(D1) |
Threads
Per Inch |
Thread Neck Dia(G) |
Thread Neck Width(I) |
Thread Neck Fillet(N) |
Thread Length(E) | ||||
Min |
Max |
Max |
Min |
Max |
Max |
Min |
Basic | |||||
1/4 |
.250 |
.227 |
.093 |
10 |
.1900 |
24 |
.142 |
.133 |
.083 |
.023 |
.017 |
.375 |
5/16 |
.312 |
.289 |
.093 |
1/4 |
.2500 |
20 |
.193 |
.182 |
.100 |
.028 |
.022 |
.438 |
3/8 |
.375 |
.352 |
.093 |
5/16 |
.3125 |
18 |
.249 |
.237 |
.111 |
.031 |
.025 |
.500 |
1/2 |
.500 |
.477 |
.093 |
3/8 |
.3750 |
16 |
.304 |
.291 |
.125 |
.035 |
.029 |
.625 |
5/8 |
.625 |
.602 |
.093 |
1/2 |
.5000 |
13 |
.414 |
.397 |
.154 |
.042 |
.036 |
.750 |
3/4 |
.750 |
.727 |
.093 |
5/8 |
.6250 |
11 |
.521 |
.502 |
.182 |
.051 |
.045 |
.875 |
1 |
1.000 |
.977 |
.125 |
3/4 |
.7500 |
10 |
.638 |
.616 |
.200 |
.055 |
.049 |
1.000 |
1-1/4 |
1.250 |
1.227 |
.125 |
7/8 |
.8750 |
9 |
.750 |
.726 |
.222 |
.062 |
.056 |
1.125 |
1-1/2 |
1.500 |
1.478 |
.125 |
1-1/8 |
1.125 |
7 |
.964 |
.934 |
.286 |
.072 |
.066 |
1.500 |
1-3/4 |
1.750 |
1.728 |
.125 |
1-1/4 |
1.250 |
7 |
1.089 |
1.059 |
.286 |
.072 |
.066 |
1.750 |
2 |
2.000 |
1.978 |
.125 |
1-1/2 |
1.500 |
6 |
1.307 |
1.277 |
.333 |
.102 |
.096 |
2.000 |