Of course, our company U.T.N proposes black or galvanized, controlled tightening bolts. It especially devotes itself to new sorts of manufacturing, and aims at solving, rapidly and in the best money-saving conditions, all problems our customers, may have to cope with. Our bolts are manufactured to cold for the small diameters, to hot for the largest.

FOR EXAMPLE : the heaviest parts that we have recently manufactured are E.36.4 steel stems, 80 mm in diameter and 5.30 meters long. As for the smallest parts, they are locking pins, 6 mm in diameter and 26 mm long, which were cold-manufactured and mass-produced on a transfering-machine.