Cite
HARVARD Citation
Institution,, B. (2019) Aerospace series. Screws, pan head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated. Classification: 1 100 PMa (at ambient temperature)/235 °C.. [Online]. London : British Standards Institution. Available from: http://access.bl.uk/ark:/81055/vdc_100105217016.0x000001