LST EN ISO 898-1:2009 碳钢和合金钢制成的紧固件的机械性能 第1部分:具有特定性能等级的螺栓、螺钉和螺柱 粗牙螺纹和细牙螺纹(ISO 898-1:2009)
Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs with specified property classes - Coarse thread and fine pitch thread (ISO 898-1:2009)