|
Hex and Hex Washer Head for Machine Screws ANSI/ASME B18.6.3 |
| |||||||||||
|
Nominal Size |
Width Across Flats(A) |
Width Across Corners(W) |
Height of Head(H) |
Diameter of Washer(F) |
Width of Slot(J) |
Depth
of Slot(T) |
||||||
Max |
Min |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
||
|
2 |
.125 |
.120 |
.134 |
.050 |
.040 |
.166 |
.154 |
- |
- |
- |
- |
|
|
4 |
.188 |
.181 |
.202 |
.060 |
.049 |
.243 |
.225 |
.039 |
.031 |
.042 |
.025 |
|
|
5 |
.188 |
.181 |
.202 |
.070 |
.058 |
.260 |
.240 |
.043 |
.035 |
.049 |
.030 |
|
|
6 |
.250 |
.244 |
.272 |
.093 |
.080 |
.328 |
.302 |
.048 |
.039 |
.053 |
.033 |
|
|
8 |
.250 |
.244 |
.272 |
.110 |
.096 |
.348 |
.322 |
.054 |
.045 |
.074 |
.052 |
|
|
10 |
.312 |
.305 |
.340 |
.120 |
.105 |
.414 |
.384 |
.060 |
.050 |
.080 |
.057 |
|
|
12 |
.312 |
.305 |
.340 |
.155 |
.139 |
.432 |
.398 |
.067 |
.056 |
.103 |
.077 |
|
|
1/4 |
.375 |
.367 |
.409 |
.190 |
.172 |
.520 |
.480 |
.075 |
.064 |
.111 |
.083 |
|
|
5/16 |
.500 |
.489 |
.545 |
.230 |
.208 |
.676 |
.624 |
.084 |
.072 |
.134 |
.100 |
|
|
3/8 |
.562 |
.551 |
.614 |
.295 |
.270 |
.780 |
.720 |
.094 |
.081 |
.168 |
.131 |
|
|
1/2 |
.750 |
.735 |
.820 |
.400 |
.367 |
1.040 |
.960 |
- |
- |
- |
- |
|
