Material aeroespacial. Bulones de cabeza bihexagonal, caña aligerada, rosca larga, en acero resistente al calor FE-PA92HT (A286). Clasificación: 900 MPa (a temperatura ambiente) / 650 ºC.
Lubricants, industrial oils and related products (class L). Family R (products for temporary protection against corrosion). Guidelines for establishing specifications