BS EN 4121:2003

Заменен

Aerospace series. Shank nuts, serrated, self-locking, in heat resisting steel FE-PA92HT (A286), silver plated on thread. Classification: 1100 MPa (at ambient temperature)/650$0DC — 10 стр.

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BS EN 4121:2004

Заменен

Aerospace series. Shank nuts, serrated, self-locking, in heat resisting steel FE- A2601 (A286), silver plated on thread. Classification: 1100 MPa (at ambient temperature) /650$0DC — 10 стр.