TAPPING SCREWS
TRUSS HEAD PHILLIPS
HEAD DIMENSIONS
Nominal Size Head Diameter Head Height Dimensions of Recess Phillips Driver Size
Diameter Dept Width
Max. Min. Max. Min. Max. Min. Max. Min.
2 .194 .180 .053 .044 .104 .091 .059 .017 1
3 .226 .211 .061 .051 .110 .097 .066 .017 1
4 .257 .241 .069 .059 .112 .099 .069 .017 1
5 .289 .272 .078 .066 .128 .115 .085 .018 1
6 .321 .303 .086 .074 .158 .145 .085 .027 2
7 .352 .333 .094 .081 .165 .152 .091 .028 2
8 .384 .364 .102 .088 .173 .160 .099 .029 2
10 .448 .425 .118 .103 .188 .175 .115 .030 2
12 .511 .487 .134 .118 .248 .235 .128 .032 3
14 .557 .530 .146 .129 .263 .250 .143 .033 3
1/4 .573 .546 .150 .133 .263 .250 .143 .033 3
5/16 .698 .666 .183 .162 .352 .339 .193 .059 4
3/8 .823 .787 .215 .191 .388 .375 .228 .065 4