Viti a testa quadra
The square head fasteners are manufactured according to European dimensional and quality standards (UNI-EN-DIN-ISO). These fasteners feature diameters ranging from 20mm to 64 mm, with a length up to 640 mm. Customers are given the opportunity to customise the size of the head, shank, thread, processing tolerances. The fasteners are all made of carbon and alloy steel, according to strength classes 4.6-5.6-8.8-10.9-12.9-14.9-B7. We can also provide galvanic coatings even with dehydrogenation, geomet, burnishing and phosphating.