WOOD SCREWS
ROUND HEAD SLOT
HEAD DIMENSIONS
Nominal Size Head Diameter Head Height Slot Width Slot Depth
Max. Min. Max. Min. Max. Min. Max. Min.
2 .162 .146 .069 .059 .031 .023 .048 .037
3 .187 .169 .078 .067 .035 .027 .053 .040
4 .211 .193 .086 .075 .039 .031 .058 .044
5 .236 .217 .095 .083 .043 .035 .063 .047
6 .260 .240 .103 .091 .048 .039 .068 .051
7 .285 .264 .111 .099 .048 .039 .072 .055
8 .309 .287 .120 .107 .054 .045 .077 .058
10 .359 .334 .137 .123 .060 .050 .087 .065
12 .408 .382 .153 .139 .067 .056 .096 .072
14 .457 .429 .170 .155 .075 .064 .106 .080
1/4 .472 .443 .175 .160 .075 .064 .109 .082
5/16 .590 .557 .216 .198 .084 .072 .132 .099
3/8 .708 .670 .256 .237 .094 .081 .156 .111