19/30397738 DC
BS EN 2939 航空航天系列 螺钉 100° 沉头 偏置十字形凹槽 头部螺纹 材质为耐热钢 FE-PA92HT (A286) 分类 900 MPa(环境温度)/650 °C
BS EN 2939. Aerospace series. Screws, 100° countersunk head, offset cruciform recess, threaded to head, in heat resisting steel FE-PA92HT (A286). Classification. 900 MPa (at ambient temperature)/650 °C