Here is a list of 156 Fastening Components categories. It encompasses a wide range including hexagon nuts, button head socket cap screws, hexagon head cap screws, double threaded bolts, etc. You can search for an overview, principle, and usage of each category, as well as find manufacturers and distributors.
*This ranking is solely among the companies registered with Metoree, sorted by the number of employees. Please use this as a rough guide to understand their scale.