1 Scope
This British Standard specifies the materials, dimensions, finish and inspection requirements for tin‑plated brass nuts with Unified hexagons and Unified threads for aircraft. It makes provision for ranges of ordinary and thin nuts.
BS 3A 210:2019 history
2019BS 3A 210:2019 Aerospace series. Nuts, hexagonal, ordinary and thin, Unified threads (below .250 inch) in brass, tin plated. Specification