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ASME/ANSI B18.6.3:2010 Oval Countersunk Head Phillips Tapping Screw
ASME/ANSI B18.6.3:2010 80° Oval Countersunk Head Phillips Tapping Screw uses a U.S. standard oval countersunk head, combining countersink seating with a rounded visible top for exposed fastening locations in export products.
The Phillips drive supports fast installation and broad tool availability, while the tapping thread forms its connection in the pilot hole, reducing part count and processing steps. The 80-degree head angle matches corresponding countersunk holes and provides a neat installed appearance.
This product can be used in electrical equipment, home hardware, plastic housings, decorative panels, and light industrial products. Plated carbon steel, stainless steel, or other material options can be selected to meet different market and environmental requirements.
Unit: inch
|
Nominal diameter d |
dk |
k |
F |
H type cross recess |
Z type cross recess |
||||||||||||
|
M |
T |
N |
Slot number |
Cross recess insertion depth |
M |
T |
N |
Slot number |
Cross recess insertion depth |
||||||||
|
max |
min |
max |
min |
max |
min |
||||||||||||
|
#0 |
0.112 |
0.096 |
0.035 |
0.021 |
0.068 |
0.036 |
0.014 |
0 |
0.038 |
0.020 |
0.068 |
0.040 |
0.018 |
0 |
0.042 |
0.024 |
|
|
#1 |
0.137 |
0.120 |
0.043 |
0.025 |
0.070 |
0.039 |
0.015 |
0 |
0.041 |
0.023 |
0.070 |
0.043 |
0.018 |
0 |
0.043 |
0.027 |
|
|
#2 |
0.162 |
0.144 |
0.051 |
0.029 |
0.106 |
0.060 |
0.018 |
1 |
0.062 |
0.045 |
0.106 |
0.065 |
0.029 |
1 |
0.052 |
0.046 |
|
|
#3 |
0.187 |
0.167 |
0.059 |
0.033 |
0.118 |
0.072 |
0.019 |
1 |
0.074 |
0.057 |
0.118 |
0.077 |
0.030 |
1 |
0.074 |
0.058 |
|
|
#4 |
0.212 |
0.191 |
0.067 |
0.037 |
0.130 |
0.086 |
0.019 |
1 |
0.087 |
0.070 |
0.130 |
0.089 |
0.030 |
1 |
0.086 |
0.070 |
|
|
#5 |
0.237 |
0.215 |
0.075 |
0.041 |
0.152 |
0.073 |
0.028 |
2 |
0.074 |
0.050 |
0.152 |
0.080 |
0.041 |
2 |
0.074 |
0.056 |
|
|
#6 |
0.262 |
0.238 |
0.083 |
0.045 |
0.172 |
0.092 |
0.030 |
2 |
0.094 |
0.069 |
0.172 |
0.100 |
0.041 |
2 |
0.093 |
0.075 |
|
|
#7 |
0.287 |
0.262 |
0.091 |
0.049 |
0.176 |
0.098 |
0.030 |
2 |
0.100 |
0.075 |
0.176 |
0.105 |
0.041 |
2 |
0.099 |
0.081 |
|
|
#8 |
0.312 |
0.285 |
0.100 |
0.052 |
0.186 |
0.107 |
0.031 |
2 |
0.108 |
0.084 |
0.186 |
0.115 |
0.041 |
2 |
0.108 |
0.090 |
|
|
#10 |
0.362 |
0.333 |
0.116 |
0.060 |
0.202 |
0.125 |
0.033 |
2 |
0.126 |
0.102 |
0.202 |
0.132 |
0.041 |
2 |
0.125 |
0.107 |
|
|
#12 |
0.412 |
0.380 |
0.132 |
0.068 |
0.264 |
0.140 |
0.038 |
3 |
0.135 |
0.111 |
0.264 |
0.148 |
0.056 |
3 |
0.135 |
0.117 |
|
|
#14 |
0.462 |
0.427 |
0.148 |
0.076 |
0.282 |
0.152 |
0.039 |
3 |
0.156 |
0.131 |
0.282 |
0.166 |
0.057 |
3 |
0.153 |
0.135 |
|
|
1/4 |
0.477 |
0.442 |
0.153 |
0.079 |
0.284 |
0.160 |
0.040 |
3 |
0.156 |
0.131 |
0.284 |
0.168 |
0.057 |
3 |
0.155 |
0.137 |
|
|
#16 |
0.512 |
0.475 |
0.164 |
0.084 |
0.326 |
0.202 |
0.046 |
3 |
0.197 |
0.172 |
0.326 |
0.210 |
0.057 |
3 |
0.197 |
0.179 |
|
|
#18 |
0.561 |
0.522 |
0.180 |
0.092 |
0.374 |
0.214 |
0.064 |
4 |
0.206 |
0.182 |
0.374 |
0.223 |
0.085 |
4 |
0.205 |
0.187 |
|
|
5/16 |
0.597 |
0.556 |
0.191 |
0.099 |
0.384 |
0.226 |
0.065 |
4 |
0.218 |
0.194 |
0.384 |
0.232 |
0.086 |
4 |
0.215 |
0.197 |
|
|
#20 |
0.611 |
0.569 |
0.196 |
0.100 |
0.394 |
0.233 |
0.066 |
4 |
0.225 |
0.201 |
0.394 |
0.242 |
0.086 |
4 |
0.225 |
0.207 |
|
|
#24 |
0.711 |
0.664 |
0.228 |
0.116 |
0.430 |
0.270 |
0.072 |
4 |
0.262 |
0.238 |
0.430 |
0.279 |
0.087 |
4 |
0.261 |
0.243 |
|
|
3/8 |
0.717 |
0.670 |
0.230 |
0.117 |
0.404 |
0.245 |
0.068 |
4 |
0.237 |
0.213 |
0.404 |
0.253 |
0.086 |
4 |
0.235 |
0.217 |
|
|
7/16 |
0.760 |
0.715 |
0.223 |
0.122 |
0.416 |
0.257 |
0.070 |
4 |
0.249 |
0.225 |
0.416 |
0.265 |
0.086 |
4 |
0.247 |
0.229 |
|
|
1/2 |
0.815 |
0.765 |
0.223 |
0.131 |
0.430 |
0.271 |
0.071 |
4 |
0.263 |
0.239 |
0.430 |
0.280 |
0.086 |
4 |
0.262 |
0.244 |
|
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