Self-piercing T.E. 6.3x70

iridiscent CHROMITING galvanic treatment (less visual impact on the panel), with resistance to weather corrosion (salt spray corrosion >800h) and pollution, far superior to all normal galvanizing or metal coatings; Ø 6.3 mm for fastenings on sheet metal, light and heavy profiles, roofing and prefabricated metal walls with thicknesses of 1.5 to 7 mm, without predrilling 70 mm.