A hexagonal nut is a type of metal fastener that has six sides. Most nuts are cut in a hexagonal shape, since it seems to be the easiest shape to grasp. Nuts, in any form, are almost exclusively used to fasten a bolt to another object.that is used in conjunction with an externally threaded fastener such as a hex head cap screw, carriage bolt, or threaded stud. Hex Nuts are turned with a wrench or a socket.
Hex nuts Dimensions are defined in both metric and imperials with unified natinao coarse pitch(UNC),and fine pitch (UNF),BSW and metric thread .
Metric & Multistandard Components Corp. supplies Metric Hexagon Nuts in many different materials including Property Classes4, 8, 10, and 12, Stainless Steel.
| Size | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 |
| Pitch | 0.5 | 0.7 | 0.8 | 1.0 | 1.25 | 1.5 | 1.75 | 2.0 | 2.0 | 2.5 |
| A/F | 5.5MM | 0.7MM | 0.8MM | 10MM | 13MM | 17MM | 19MM | 22MM | 24MM | 30MM |
| Thickness | 1.8MM | 2.2MM | 2.7MM | 3.2MM | 4.0MM | 5.0MM | 6MM | 7MM | 8MM | 10MM |
| Size | M22 | M24 | M27 | M30 | M33 | M36 |
| Pitch | 2.5 | 3.0 | 3.0 | 3.5 | 3.5 | 4.0 |
| A/F | 32MM | 36MM | 41MM | 46MM | 50MM | 55MM |
| Thickness | 11MM | 12MM | 13.5MM | 15MM | 16.5MM | 18MM |
| Size | M8 | M10 | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 |
| Pitch | 1.0 | 1.0 | 1.25 | 1.25 & 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
| A/F | 13MM | 17MM | 14MM & 17MM | 17MM & 19MM | 22MM | 24MM | 27MM | 30MM | 32MM | 36MM |
| Thickness | 4.0MM | 5.0MM | 5.0MM | 6MM | 7MM | 8MM | 9MM | 10MM | 11MM | 12MM |
