TR FASTENINGS
螺丝, 平/埋头, 米字, M5 X 18MM
螺丝, 盘头, 米字, M3 X 18MM
螺丝, 盘头, 米字, M3.5 X 18MM
螺丝, 法兰面, 米字, M4 X 18MM
HARTING
插座安装螺丝, #4-40 UNC