Giacomo Martinelli Srl is specialized in cold deformations, expecially for the realization of: thread rolling operations (for external threaded profile - standards or not), splined shafts (untill module 1,6 thanks to its 2 Rotoflo Machine ), straightening operations, automatic montage of 1/2 washer/s on the screws and then the automatic realization of their threaded profile (using our 4 TLM machines), creations of gorges by cold deformation, knurling and grooving, and much more. We cooperate with the most important companies in the world for the realization of their components for different sectors: automotive, aerospace, commercial-industrial vehicles, agricoltural and earth moving machinery, railways, petrochemical and wind, and much much more. We are specialized in lot from only one piece to lot of various million pieces, from M1 to M180; also the materials will be not a problem: Giacomo Martinelli Srl is the only company in the world used from the customers for realize the thread rolling operation for particulars in material 15,9 after heat treatment. Giacomo Martinelli will start where other supplier said stop. Contact us: we will be at Your disposal for any inquiry or question.