Kacang heksagonal minangka jinis pengikat logam sing duwe enem sisi.Umume kacang dipotong kanthi bentuk heksagonal, amarga katon minangka bentuk sing paling gampang kanggo nangkep.Kacang, ing wangun apa wae, meh khusus digunakake kanggo nyepetake baut menyang obyek liyane. sing digunakake bebarengan karo pengikat benang eksternal kayata sekrup tutup kepala hex, bolt carriage, utawa stud benang.Kacang Hex diuripake nganggo kunci utawa soket.
Kacang hex Dimensi ditetepake ing loro metrik lan imperials karo natinao coarse pitch (UNC), lan fine pitch (UNF), BSW lan benang metrik.
Metric & Multistandard Components Corp. nyedhiyakake Metric Hexagon Nuts ing macem-macem bahan kalebu Property Classes4, 8, 10, lan 12, Stainless Steel.
| Ukuran | 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 |
| dhuwur | 5,8 MM | 7.0 MM | 8,6 MM | 9,8 MM | 11.4 MM | 12.6 MM | 14.2 MM |
| Ukuran | 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 |
| dhuwur | 16.9 MM | 19.7 MM | 22,5 MM | 25.4 MM | 27.8 MM | 30.7 MM | 33,5 MM |
