综合论述了紧固件国家标准在机械性能等级、适用范围、验收检查标准、产品重量、表面粗糙度、尺寸公差表示法、产品品种和等级、螺纹组合件、尺寸和规格、术语等方面对企业的影响。本企业尤其要注意国家标准不适合于高温范围、可焊接和耐腐蚀性的紧固件。 This article comprehensively expounds the national standards of fasteners on the mechanical performance level, the scope of application, acceptance inspection standards, product weight, surface roughness, dimensional tolerance representation, product variety and grade, thread assembly, size and specifications, terminology and so on Impact. In particular, the enterprises should pay attention to national standards are not suitable for high temperature range, welding and corrosion resistance of fasteners.