TAPPING SCREWS
PAN HEAD PHILLIPS
HEAD DIMENSIONS
Nominal Size Head Diameter Head Height Dimensions of Recess Phillips Driver Size
Diameter Depth Width
Max. Min. Max. Min. Max. Min. Max. Min.
2 .167 .155 .062 .053 .104 .091 .059 .017 1
3 .193 .180 .071 .062 .112 .099 .068 .019 1
4 .219 .205 .080 .070 .122 .109 .078 .019 1
5 .245 .231 .089 .079 .158 .145 .083 .028 2
6 .270 .256 .097 .087 .166 .153 .091 .028 2
7 .296 .281 .106 .096 .176 .163 .100 .029 2
8 .322 .306 .115 .105 .182 .169 .108 .030 2
10 .373 .357 .133 .122 .199 .186 .124 .031 2
12 .425 .407 .151 .139 .259 .246 .141 .034 3
14 .476 .457 .169 .156 .281 .268 .161 .039 3
1/4 .492 .473 .175 .162 .281 .268 .161 .039 3
5/16 .615 .594 .218 .203 .350 .337 .193 .059 4
3/8 .740 .716 .261 .244 .393 .380 .233 .065 4