DIN EN 3444-2007 航空航天系列.钝化处理的耐热镍基合金中长度螺纹紧公差标准螺杆的大双六角头螺栓.等级:1250MPa(室温)/650℃
Aerospace series - Bolts, large bihexagonal head, close tolerance normal shank, medium length thread, in heat resisting nickel base alloy, passivated - Classification: 1250 MPa (at ambient temperature)/650 °C; German and English version EN 3444:2006
This standard specifies the characteristics of bolts, large bihexagonal head, close tolerance normal shank,
medium length thread, in heat resisting nickel base alloy, passivated.
Classification: 1 250 MPa / 650 ℃.