EN 3299:2007
航空航天系列.鍍銀,右或左旋MJ螺紋,自鎖緊,FE-PA2601(A286)耐熱鋼軸螺母和螺環(huán).技術規(guī)范
Aerospace series - Shaft-nuts and threaded rings, self-locking, right- or left-hand MJ threads, in heat resisting steel FE-PA2601 (A286), silver plated - Technical specification