Aerospace; pan head bolts, close tolerance, with ribbed TORQ-SET (ACR) recess and short-length MJ thread, corrosion-resisting steel; nominal tensile strength 1100 MPa, for temperatures up to 425 °C
航空航天盘头螺栓 紧公差 带螺纹TORQ-SET(ACR)凹槽和短长度MJ螺纹 耐腐蚀钢;温度高达425°C时的标称抗拉强度为1100 MPa