Brass Acorn Nuts or Dome Nuts are used to cover exposed Threaded Stud, Rod and Bolt ends with a dome-like cap. This provides safety and a finished look to the exposed threaded end.
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| F | B | O | H | D | T | C | |
| Nominal Diamet & Thread Size |
Across Flats |
Crown Diameter |
Overall Height |
hex Height |
Drill Depth |
Thread Length |
Across Corners |
| ref | ref | ref | ref | max | min | ref | |
| #6 0.1380 | 5/16 | 19/64 | 11/32 | 5/32 | 1/4 | 5/32 | 0.344 |
| #8 0.1640 | 5/16 | 19/64 | 11/32 | 5/32 | 1/4 | 5/32 | 0.344 |
| #10 0.1900 | 3/8 | 23/64 | 13/32 | 3/16 | 9/32 | 3/16 | 0.413 |
| #12 0.2160 | 3/8 | 23/64 | 13/32 | 3/16 | 5/16 | 7/32 | 0.413 |
| 1/4 0.2500 | 7/16 | 13/32 | 15/32 | 7/32 | 11/32 | 1/4 | 0.488 |
| 5/16 0.3125 | 1/2 | 15/32 | 17/32 | 1/4 | 13/32 | 5/16 | 0.557 |
| 3/8 0.3750 | 9/16 | 17/32 | 5/8 | 9/32 | 29/64 | 3/8 | 0.628 |
| 7/16 0.4375 | 5/8 | 19/32 | 11/16 | 5/16 | 33/64 | 7/16 | 0.698 |
| 1/2 0.5000 | 3/4 | 23/32 | 13/16 | 3/8 | 19/32 | 1/2 | 0.840 |
| 9/16 0.5625 | 7/8 | 27/32 | 15/16 | 7/16 | 11/16 | 9/16 | 0.981 |
| 5/8 0.6250 | 15/16 | 29/32 | 1 | 15/32 | 3/4 | 5/8 | 1.051 |
| 3/4 0.7500 | 1-1/16 | 1-1/32 | 1-5/32 | 17/32 | 7/8 | 3/4 | 1.221 |
| 7/8 0.8750 | 1-1/4 | 1-7/32 | 1-23/64 | 5/8 | 1 | 7/8 | 1.402 |
| 1 1.0000 | 1-7/16 | 1-13/32 | 1-35/64 | 23/32 | 1-1/8 | 1 | 1.614 |