NF L22-591:2020 Aircraft bolts and nuts - Nuts, anchor, self-locking, two lug, reduced series, with counterbore, ISO M or ISO MJ threads, in corrosion resisting steel, silver plated - Classification : 1 100 MPa (at ambient temperature)/425 oC
2020NF L22-591:2020 Aircraft bolts and nuts - Nuts, anchor, self-locking, two lug, reduced series, with counterbore, ISO M or ISO MJ threads, in corrosion resisting steel, silver plated - Classification : 1 100 MPa (at ambient temperature)/425 oC