WOOD SCREWS
ROUND HEAD PHILLIPS
All Dimensions in Inches
Nominal 
Diameter
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