95 Pcs M5.5 Washer Zinc Carbon Steel Hexagon Head Screw Self Drilling Tapping

95 Pcs M5.5x45/60/100 With Washer Zinc-Plated Carbon Steel Hexagon Flange Head Wood Screw Hex Head Self Drilling Tapping Screw. Size: M5.5. It is wood drill tail screw, mainly used in steel structure caigang watt fixed, can also be used for fixing the simple construction of the sheet material.Standard hex washer head screw,can be easily installed.