BS A 400:2010 Specification for nuts, plain and slotted (unified hexagons and unified threads) for shear bolts for aircraft in corrosion-resisting steel
This British Standard specifies the materials, dimensions, finish and
inspection requirements for corrosion-resisting steel nuts with unified
hexagons and unified threads for use with shear bolts for aircraft. It
makes provision for ranges of plain and slotted nuts.
BS A 400:2010 Referenced Document
BS EN 2516 Aerospace series. Passivation of corrosion resisting steels and decontamination of nickel or cobalt base alloys*, 2024-02-29 Update
BS A 400:2010 history
2010BS A 400:2010 Specification for nuts, plain and slotted (unified hexagons and unified threads) for shear bolts for aircraft in corrosion-resisting steel