Leading Suppliers Nationally for Airtight Nuts

Here is a list of companies that are known suppliers of Airtight Nuts in the United Kingdom:

1. Airscrew Ltd
2. Brompton Technology Ltd
3. Coventry Fasteners Ltd
4. Fastenright Ltd
5. Melfast UK Ltd

Please note that the competitive landscape in the industry may change, so it's recommended to verify the current market status before making any decisions.