TAPPING
SCREWS FLAT HEAD HEAD DIMENSIONS |
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All Dimensions in Inches |
Nominal Size or Basic Screw Diameter | Head Diameter | Recess Square | Recess Depth | Driver Size | Penetration Gaging Depth | |||||
Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | |||
3 | 0.099 | .199 | .175 | 0.071 | 0.0696 | 0.073 | 0.063 | 0 | 0.038 | 0.032 |
4 | 0.112 | .225 | .200 | 0.071 | 0.0696 | 0.073 | 0.063 | 0 | 0.038 | 0.032 |
5 | 0.125 | .252 | .225 | 0.091 | 0.090 | 0.113 | 0.105 | 1 | 0.065 | 0.057 |
6 | 0.138 | .279 | .249 | 0.091 | 0.090 | 0.113 | 0.105 | 1 | 0.065 | 0.057 |
7 | 0.151 | .305 | .274 | 0.091 | 0.090 | 0.113 | 0.105 | 1 | 0.065 | 0.057 |
8 | 0.164 | .332 | .300 | 0.1126 | 0.111 | 0.140 | 0.119 | 2 | 0.075 | 0.065 |
10 | 0.190 | .385 | .348 | 0.1126 | 0.111 | 0.140 | 0.119 | 2 | 0.075 | 0.065 |
12 | 0.216 | .438 | .397 | 0.133 | 0.1315 | 0.165 | 0.155 | 3 | 0.095 | 0.085 |
14 | 0.242 | 507 | .462 | 0.133 | 0.1315 | 0.165 | 0.155 | 3 | 0.095 | 0.085 |