Aerospace series - Nuts, hexagonal, plain, normal height, normal across flats, in steel, cadmium plated, left hand thread - Classification: 1100 MPa (at ambient temperature) / 235 °C; German and English version EN 3227:2010— 18 стр.
Timber structures - Joints made with mechanical fasteners - General principles for the determination of strength and deformation characteristics (ISO 6891:1983)
Timber structures; testing of joints made with mechanical fasteners; requirements for wood density (ISO 8970:1989); german version EN 28970:1991— 4 стр.
