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BS +A 104:2025
M00000216
New product
BS +A 104:2025 AEROSPACE SERIES Bolts, hexagonal heads with optional safety locking wire holes, unified threads, corrosion-resisting or heat-resisting steels, plain finish. Specification-Classification CR steel Rm ≥ 127 600 lbf/in2 (880 MPa) at Ambient temperature | +515 °C. Classification HR steel Rm ≥ 130 500 lbf/in2 (900 MPa) at Ambient temperature | +515 °C
standard byBSI Group , 08/19/2025
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This British Standard specifies materials and manufacture, dimensions, protective finish and quality assurance requirements for hexagon head bolts with unified threads for aerospace use.
It also caters for the bolts to have additional safety locking wire holes in the heads if so required.
All current amendments available at time of purchase are included with the purchase of this document.