所研发的10.9级耐火耐候紧固件产品采用首钢贵钢公司生产的耐火耐候紧固件钢作为原材料，经过退火、拉拔及镦头、热处理等工艺后得到螺栓、螺母等连接副产品，产品机械性能、螺栓楔负载、螺母保证载荷、垫圈硬度及连接副轴力性能等均满足标准性能要求。

Developed by the 10.9 -magnitude refractory weather resistance fasteners products adopt shougang steel company as raw materials, production of refractory weather resistance fasteners steel after annealing, drawing and heading, resulting from the heat treatment process such as bolt, nut connection such as a by-product, product mechanical properties, bolt load, wedge nut guarantee load, gasket hardness and the connection shaft force performance meet the standards and performance requirements.