WOOD SCREWS
OVAL HEAD SLOT
HEAD DIMENSIONS
Nominal Size Head Diameter Head Height Slot Width Slot Depth
Side Height Total Height
Max. Min. Max. Min. Max. Min. Max. Min. Max. Min.
2 .172 .150 .051 .040 .080 .063 .031 .023 .045 .037
3 .199 .175 .059 .048 .092 .073 .035 0.27 .052 .043
4 .225 .200 .067 .055 .104 .084 .039 .031 .059 .049
5 .252 .225 .075 .062 .116 .095 .043 0.35 .067 .055
6 .279 .249 .083 .069 .128 .105 .048 .039 .074 .060
7 .305 .274 .091 .076 .140 .116 .048 .039 .081 .066
8 .332 .300 .100 .084 .152 .126 .054 .045 .088 .072
10 .385 .348 .116 .098 .176 .148 .060 .050 .103 .084
12 .438 .397 .132 .112 .200 .169 .067 .056 .117 .096
14 .491 .447 .148 .127 .224 .190 .075 .064 .132 .108
1/4 .507 .462 .153 .131 .232 .197 .075 .064 .136 .112
5/16 .635 .581 .191 .165 .290 .249 .084 .072 .171 .141
3/8 .762 .700 .230 .200 .347 .300 .094 .081 .206 .170