This hex nut is made from Permaglas ME 730, a glass fiber-reinforced epoxy resin. The material handles temperatures ranging from –270°C to +155°C and has a low specific gravity (Sg 1.8). Permaglas ME 730 is corrosion-resistant and offers excellent UV and weather resistance. On top of that, it stands up exceptionally well to aggressive chemicals and gases, provides both electrical and thermal insulation, and is non-magnetic. Its load-bearing capacity also exceeds that of materials like polyamide.