Cite
MLA Citation
British Standards Institution,. Aerospace series. Bolts with double hexagon head, relieved shank, long thread, in heat resisting steel FE-PM 38 (FV 535). Classification: 1000 MPa/550 °C.. London : British Standards Institution, 2015. http://access.bl.uk/ark:/81055/vdc_100174218893.0x000001