Eso hexagonal jẹ iru ohun ti o ni irin ti o ni awọn ẹgbẹ mẹfa.Pupọ awọn eso ni a ge ni apẹrẹ onigun mẹrin, nitori o dabi pe o jẹ apẹrẹ ti o rọrun julọ lati di.Eso, ni eyikeyi fọọmu, ti fẹrẹ jẹ iyasọtọ ti a lo lati so bolt kan si nkan miiran.eyiti a lo ni apapo pẹlu ohun mimu ti ita ita gẹgẹbi skru hex head cap screw, carriage bolt, or the threaded stud.Awọn eso hex ti wa ni titan pẹlu wrench tabi iho.
Awọn iwọn hex eso jẹ asọye ni metiriki mejeeji ati awọn ijọba pẹlu ipolowo isokan natinao isokan (UNC), ati ipolowo ti o dara (UNF), BSW ati okun metric.
Metric & Multistandard Components Corp. n pese Awọn Eso Hexagon Metric ni ọpọlọpọ awọn ohun elo oriṣiriṣi pẹlu Awọn kilasi Ohun-ini4, 8, 10, ati 12, Irin Alagbara.
| Iwọn | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 9/16 | 5/8 |
| TPI | 28G | 24G | 24G | 20G | 20G | 18G | 18G |
| A/F | 7/16 | 1/2 | 9/16 | 5/8 | 3/4 | 13/16 | 15/16 |
| Giga | 5.8MM | 7.0MM | 8.6MM | 9.8MM | 11.4MM | 12.6MM | 14.2MM |
| Iwọn | 3/4 | 7/8 | 1" | 1-1/8 | 1-1/4 | 1-3/8 | 1-1/2 |
| TPI | 16G | 14G | 12G | 12G | 12G | 12G | 12G |
| A/F | 1-1/8 | 1-5/16 | 1-1/2 | 1-11/16 | 1-7/8 | 2-1/16 | 2-1/4 |
| Giga | 16.9MM | 19.7MM | 22.5MM | 25.4MM | 27.8MM | 30.7MM | 33.5MM |
