We are a leader in the production of both standard and special screws, for wholesalers and specialized distributors. With a p ... roduction of about 25,000 tons of screws each year and extensive production experience, Bontempi VIBO S.p.A. is the very pillar of “Made in Italy” screws and bolts. We have multiple production centres throughout Italy: - In Calabritto (Avellino) where we cold forge VIBO screws with M5 to M12 diameters - In Rodengo Saiano (Brescia) where we cold forge VIBO screws with M12 to M36 diameters - In Bellusco (Monza Brianza) where we hot forge FRAM screws with M20 to M65 diameters read more