ISO 898-1:2013 碳鋼和合金鋼制緊固件的機(jī)械性能.第1部分:具有規(guī)定性能等級的螺栓、螺釘和螺柱.粗牙螺紋和細(xì)齒節(jié)螺紋
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