Cite
HARVARD Citation
Institution,, B. (2017) Aerospace series. Nuts, hexagon, self-locking by plastic ring, normal height, normal across flats, in alloy steel, cadmium plated. Classification: 900 MPa (at ambient temperature) / 120 °C.. [Online]. London : British Standards Institution. Available from: http://access.bl.uk/ark:/81055/vdc_100172073413.0x000001