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Details for 82 degree Screws
| Size |
Min.
C'sink |
Max
C'sink |
Tap
dia |
Tap
Drill |
Pre-tap
Hole size |
Clearance
(tight) |
C'Bore
Socket Head Cap |
| 0-80 |
.119 |
.128 |
.060 |
3/64 |
.047 |
.068 |
.109 |
| 1-64 |
.146 |
.158 |
.073 |
#53 |
.060 |
.080 |
.140 |
| 2-56 |
.172 |
.187 |
.086 |
#50 |
.070 |
.093 |
.156 |
| 3-48 |
.200 |
.210 |
.099 |
#47 |
.078 |
.106 |
.171 |
| 4-40 |
.225 |
.235 |
.112 |
#43 |
.089 |
.118 |
.203 |
| 5-40 |
.240 |
.255 |
.125 |
#38 |
.101 |
.132 |
.218 |
| 6-32 |
.279 |
.290 |
.138 |
#36 |
.106 |
.144 |
.234 |
| 8-32 |
.332 |
.345 |
.164 |
#29 |
.136 |
.171 |
.281 |
| 10-24 |
.385 |
.395 |
.190 |
#25 |
.149 |
.196 |
.328 |
| 10-32 |
.385 |
.395 |
.190 |
#21 |
.159 |
.196 |
.328 |
| 12-24 |
.438 |
.448 |
.216 |
#16 |
.180 |
.223 |
.363 |
| 12-32 |
.438 |
.448 |
.216 |
#13 |
.185 |
.223 |
.363 |
| 1/4-20 |
.507 |
.520 |
.250 |
#7 |
.201 |
.256 |
.414 |
| 1/4-20 |
.507 |
.520 |
.250 |
#3 |
.213 |
.256 |
.414 |
| 5/16-18 |
.635 |
.647 |
.312 |
F |
.257 |
.319 |
.518 |
| 5/16-24 |
.635 |
.647 |
.312 |
I |
.272 |
.319 |
.518 |
| 3/8-16 |
.762 |
.776 |
.375 |
5/16 |
.312 |
.382 |
.622 |
| 3/8-24 |
.762 |
.776 |
.375 |
Q |
.332 |
.382 |
.622 |
| 7/16-14 |
.812 |
.824 |
.437 |
U |
.368 |
.443 |
.625 |
| 7/16-20 |
.812 |
.824 |
.437 |
25/64 |
.391 |
.443 |
.625 |
| 1/2-13 |
.875 |
.890 |
.500 |
27/64 |
.422 |
.506 |
.750 |
| 1/2-20 |
.875 |
.890 |
.500 |
29/64 |
.453 |
.506 |
.750 |
| 9/16-12 |
1.000 |
1.015 |
.562 |
31/64 |
.484 |
.569 |
.812 |
| 9/16-18 |
1.000 |
1.015 |
.562 |
33/64 |
.516 |
.569 |
.812 |
| 5/8-11 |
1.125 |
1.14 |
.625 |
17/32 |
.531 |
.632 |
.875 |
| 5/8-18 |
1.125 |
1.140 |
.625 |
37/64 |
.578 |
.632 |
.875 |
| 3/4-10 |
1.375 |
1.390 |
.750 |
21/32 |
.656 |
.756 |
1.000 |
| 3/4-16 |
1.375 |
1.390 |
.750 |
11/16 |
.687 |
.756 |
1.000 |
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