平头螺丝 meaning in Chinese

cap screw
flat head screws
grub screw

Round head screw
高平头螺丝
Aerospace series - screws , pan head , slotted , threaded to head , in brass , tin plated - classification : 380 mpa at ambient temperature 80 c ; german version en 2651 : 1996
航空航天系列.镀锡黄铜制螺纹接近顶部带槽平头螺丝
Aerospace series - screws , pan head , slotted , threaded to head , in corrosion resisting steel , passivated - classification : 600 mpa at ambient temperature 425 c ; german version en 2650 : 1996
航空航天.钝化耐蚀钢螺纹长度接近顶部带槽平头螺丝