论文部分内容阅读
本文分析了GB/T 3098.2—2000《紧固件机械性能 螺母 粗牙螺纹》和GB/T 3098.4—2000《紧固件机械性能 螺母 细牙螺纹》,阐明了该两项国家标准与被其代替的旧标准的主要区别。
This article analyzes the GB / T 3098.2-2000 “fastener mechanical properties of the nut coarse thread” and GB / T 3098.4-2000 “fasteners mechanical properties of fine thread nut” to clarify the two national standards and be replaced by The main difference between the old standard.