Aerospace series - Nuts, anchor, self-locking, fixed, two lug, with counterbore, in alloy steel, cadmium plated, MoS₂ lubricated - Classification: 1100 MPa (at ambient temperature)/235 °C; German and English version EN 4084:2009
Edition 2010-04

Aerospace serie - Nuts, anchor, self-locking, fixed, two lug, reduced series, with incremental counterbore, in heat resisting steel, MoS ₂ lubricated - Classification: 900 MPa (at ambient temperature) / 315 °C; German and English version EN 4125:2010
Edition 2010-05

Aerospace series - Nuts, anchor, self-locking, floating, two lug, reduced series, with incremental counterbore, in heat resisting steel, MoS₂ lubricated - Classification: 900 MPa (at ambient temperature) / 315 °C; German and English version EN 4126:2010
Edition 2010-05

Aerospace series - Nuts, anchor, self-locking, floating, two lug, reduced series, with counterbore, in steel, cadmium plated, MoS₂ lubricated - Classification: 1 100 MPa (at ambient temperature)/235 °C; German and English version EN 4269:2023
Edition 2023-09

Nut, plate, countersunk 100°, self-locking, two lugs, for temperatures up to 235 °C
Edition 1970-07

Aerospace; nuts, plate, self-locking, pressure tight, two lugs, for temperatures from - 55 to + 100 °C
Edition 1980-11

Anchor nuts, self locking, two lugs, for temperatures up to 315 °C and 425 °C
Edition 1977-07

Aerospace - Nuts, plate, self-locking, floating, two lugs, for temperatures up to 425 °C; Inactive for new design
Edition 2015-05

Anchor nuts, self-locking, two lug, for temperatures up to 120 °C
Edition 1974-09

Aerospace - Anchor nuts, self-locking, deep counterbore, double lug, for temperatures up to 235 °C; inactive for a new design
Edition 1996-12