EN 4634:2009
航空航天系列.钝化的FE-PA2601(A286)型耐热钢短螺纹六瓣凹槽100°沉头螺钉.等级:900MPa(环境温度)/650℃
Aerospace series - Screws, 100° countersunk head, six lobe recess, short thread, in heat resisting steel FE-PA2601 (A286), passivated - Classification: 900 MPa (at ambient temperature) / 650 °C