MACHINE SCREWS
PAN HEAD PHILLIPS
HEAD DIMENSIONS ONLY
  All Dimensions in Inches
Basic 
Screw 
Diameter
Head Diameter Head Height Dimensions of Recess Phillips 
Driver 
Size
Diameter Depth Width
Max. Min. Max. Min. Max. Min. Max. Min.
2/56 .167 .155 .062 .053 .104 .091 .059 .017 1
3/48 .193 .180 .071 .062 .112 .099 .068 .019 1
4/40 .219 .205 .080 .070 .122 .109 .078 .019 1
5/40 .245 .231 .089 .079 .158 .145 .083 .028 2
6/32 .270 .256 .097 .087 .166 .153 .091 .028 2
8/32 .322 .306 .115 .105 .182 .169 .108 .030 2
10/24 .373 .357 .133 .122 .199 .186 .124 .031 2
10/32 .373 .357 .133 .122 .199 .186 .124 .031 2
12/24 .425 .407 .151 .139 .259 .246 .141 .034 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