| Tipo | Manufacturer |
|---|---|
| Sito web | https://www.alleghenybolt.com/ |
| Indirizzo | 16216 Gundry Avenue Paramount, CA 90723 |
Allegheny is dedicated to providing the most comprehensive line of security nuts, bolts and screws in the industry including the patented Tampruf fasteners. Also known as Tri-Groove.