Ashok Fasteners is Trustable Comapany for Nut Bolt Manufacturer in India. High-quality, durable Nut Bolt manufacturer for global needs. Nuts used as fasteners come in various shapes and sizes, each designed for specific applications. Common types include hex nuts, which have six flat sides and are the most common type of nut used in fastening applications. Other types include nyloc nuts, which have a nylon insert to prevent loosening due to vibrations, and wing nuts, which have two large metal "wings" for easy hand tightening and loosening.