| MACHINE SCREWS TRUSS HEAD SLOT |
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| Nominal size | Head Diameter | Head Height | Slot Width | Slot Depth | |||||||||||||
| Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | ||||||||||
| 2 | .194 | .180 | .053 | .044 | .031 | .023 | .031 | .022 | |||||||||
| 3 | .226 | .211 | .061 | .051 | .035 | .027 | .036 | .026 | |||||||||
| 4 | .257 | .241 | .069 | .059 | .039 | .031 | .040 | .030 | |||||||||
| 5 | .289 | .272 | .078 | .066 | .043 | .035 | .045 | .034 | |||||||||
| 6 | .321 | .303 | .086 | .074 | .048 | .039 | .050 | .037 | |||||||||
| 7 | .352 | .333 | .094 | .081 | .048 | .039 | .054 | .041 | |||||||||
| 8 | .384 | .364 | .102 | .088 | .054 | .045 | .058 | .045 | |||||||||
| 10 | .448 | .425 | .118 | .103 | .060 | .050 | .068 | .053 | |||||||||
| 12 | .511 | .487 | .134 | .118 | .067 | .056 | .077 | .061 | |||||||||
| 14 | .557 | .530 | .146 | .129 | .075 | .064 | .085 | .068 | |||||||||
| 1/4 | .573 | .546 | .150 | .133 | .075 | .064 | .087 | .070 | |||||||||
| 5/16 | .698 | .666 | .183 | .162 | .084 | .072 | .106 | .085 | |||||||||
| 3/8 | .823 | .787 | .215 | .191 | .094 | .081 | .124 | .100 | |||||||||
