A nut is a type of hardware. It is a small, often hexagonal piece of metal, with a hole with internal screw thread, to be fitted onto a bolt, or cap screw, which is inserted through holes of two or more objects, to attach these objects to each other.
Nuts are graded with ratings compatible with cap screws; for example, a grade 8 nut will be able to support the rated torque and clamp load of a grade 8 cap screw.
Types of nuts
- straight
- flange
- locking
- polymer insert
- oval lock
- T-nut