|
Fillister Heads for Machine Screws ANSI/ASME B18.6.3 1972 | |||||||||||||||
|
Nominal Size |
Head Dimensions |
Slot Dimensions |
Recess Dimensions |
Driver Size | |||||||||||
Diameter(A) |
Height |
Width(J) |
Depth(T) |
Dia. (M) |
Depth(G) |
Width(N) | |||||||||
Side
Height(H) |
Total Height(O) | ||||||||||||||
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min | ||
|
0 |
.096 |
.083 |
.043 |
.038 |
.055 |
.047 |
.023 |
.016 |
.025 |
.015 |
.067 |
.054 |
.039 |
.013 |
0 |
|
1 |
.118 |
.104 |
.053 |
.045 |
.066 |
.058 |
.031 |
.020 |
.026 |
.019 |
.074 |
.061 |
.045 |
.014 |
0 |
|
2 |
.140 |
.124 |
.062 |
.053 |
.083 |
.066 |
.031 |
.023 |
.037 |
.025 |
.104 |
.091 |
.059 |
.017 |
1 |
|
3 |
.161 |
.145 |
.070 |
.061 |
.095 |
.077 |
.035 |
.027 |
.043 |
.030 |
.112 |
.099 |
.068 |
.019 |
1 |
|
4 |
.183 |
.166 |
.079 |
.069 |
.107 |
.088 |
.039 |
.031 |
.048 |
.035 |
.122 |
.109 |
.078 |
.019 |
1 |
|
5 |
.205 |
.187 |
.088 |
.078 |
.120 |
.100 |
.043 |
.035 |
.054 |
.040 |
.143 |
.130 |
.067 |
.027 |
2 |
|
6 |
.226 |
.208 |
.096 |
.086 |
.132 |
.111 |
.048 |
.039 |
.060 |
.045 |
.166 |
.153 |
.091 |
.028 |
2 |
|
8 |
.270 |
.250 |
.113 |
.102 |
.156 |
.133 |
.054 |
.045 |
.071 |
.054 |
.182 |
.169 |
.108 |
.030 |
2 |
|
10 |
.313 |
.292 |
.130 |
.118 |
.180 |
.156 |
.060 |
.050 |
.083 |
.064 |
.199 |
.186 |
.124 |
.031 |
2 |
|
12 |
.357 |
.334 |
.148 |
.134 |
.205 |
.178 |
.067 |
.056 |
.094 |
.074 |
.259 |
.246 |
.141 |
.034 |
3 |
|
1/4 |
.414 |
.389 |
.170 |
.155 |
.237 |
.207 |
.075 |
.064 |
.109 |
.087 |
.281 |
.268 |
.161 |
.036 |
3 |
|
5/16 |
.518 |
.490 |
.211 |
.194 |
.295 |
.262 |
.084 |
.072 |
.137 |
.110 |
.322 |
.309 |
.203 |
.042 |
3 |
|
3/8 |
.622 |
.590 |
.253 |
.233 |
.355 |
.315 |
.094 |
.081 |
.164 |
.133 |
.389 |
.376 |
.233 |
.065 |
4 |
|
1/2 |
.750 |
.710 |
.297 |
.273 |
.412 |
.362 |
.106 |
.091 |
.190 |
.151 |
.435 |
.422 |
.280 |
.071 |
4 |
