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SQUARE HEAD SET SCREWS
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All Dimensions in Inches
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| Basic Screw Diameter |
Width Across Flats |
Width Across Corners |
Head Height |
| Max. |
Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
Min. |
| 10 |
0.1900 |
0.188 |
0.180 |
0.265 |
0.247 |
0.148 |
0.134 |
| 1/4 |
0.2500 |
0.250 |
0.241 |
0.354 |
0.331 |
0.196 |
0.178 |
| 5/16 |
0.3125 |
0.312 |
0.302 |
0.442 |
0.415 |
0.245 |
0.224 |
| 3/8 |
0.3750 |
0.375 |
0.362 |
0.530 |
0.497 |
0.293 |
0.270 |
| 7/16 |
0.4375 |
0.438 |
0.423 |
0.619 |
0.581 |
0.341 |
0.315 |
| 1/2 |
0.5000 |
0.500 |
0.484 |
0.707 |
0.665 |
0.389 |
0.361 |
| 9/16 |
0.5625 |
0.562 |
0.545 |
0.795 |
0.748 |
0.437 |
0.407 |
| 5/8 |
0.6250 |
0.625 |
0.606 |
0.884 |
0.833 |
0.485 |
0.452 |
| 3/4 |
0.7500 |
0.750 |
0.729 |
1.060 |
1.001 |
0.582 |
0.544 |
| 7/8 |
0.8750 |
0.875 |
0.852 |
1.237 |
1.170 |
0.678 |
0.635 |
| 1 |
1.0000 |
1.000 |
0.974 |
1.414 |
1.337 |
0.774 |
0.726 |
| 1-1/8 |
1.1250 |
1.125 |
1.096 |
1.591 |
1.505 |
0.870 |
0.817 |
| 1-1/14 |
1.2500 |
1.250 |
1.219 |
1.768 |
1.674 |
0.966 |
0.908 |
| 1-3/8 |
1.3750 |
1.375 |
1.342 |
1.945 |
1.843 |
1.063 |
1.000 |
| 1-1/12 |
1.5000 |
1.500 |
1.464 |
2.121 |
2.010 |
1.159 |
1.091 |