| THREAD
CUTTING SCREWS INDENTED HEX WASHER HEAD HEAD DIMENSIONS |
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 |
All Dimensions in Inches | |
| THREAD
CUTTING SCREWS INDENTED HEX WASHER HEAD HEAD DIMENSIONS |
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All Dimensions in Inches | |
| Nominal Size |
Width
Across Flats |
Width Across Corners |
Head Height | Diameter
of Washer |
Thickness
of Washer |
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| Max. | Min. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | |
| 4 | .187 | .181 | .202 | .060 | .049 | .243 | .225 | .019 | .011 |
| 5 | .187 | .181 | .202 | .070 | .058 | .260 | .240 | .0.25 | .015 |
| 6 | .250 | .244 | .272 | .093 | .080 | .328 | .302 | .0.25 | .015 |
| 7 | .250 | .244 | .272 | .093 | .080 | .328 | .302 | .029 | .017 |
| 8 | .250 | .244 | .272 | .110 | .096 | .348 | .322 | .031 | .019 |
| 10 | .312 | .305 | .340 | .120 | .105 | .414 | .384 | .031 | .019 |
| 12 | .312 | .305 | .340 | .155 | .139 | .432 | .398 | .039 | .022 |
| 14 | .375 | .367 | .409 | .190 | .172 | .520 | .480 | .050 | .030 |
| 1/4 | .375 | .367 | .409 | .190 | .172 | .520 | .480 | .050 | .030 |
| 5/16 | .500 | .489 | .545 | .230 | .208 | .676 | .624 | .055 | .035 |
| 3/8 | .562 | .551 | .614 | .295 | .270 | .780 | .720 | .063 | .037 |