Self Drilling Screw

*Diameter:M3.5（#6)/M3.9（#7)/M4.2(#8)/M4.8(#10)/M5.5(#12)/M6.3(#14)
*Length:From 9.50mm (3/8 inches) to 125mm(5 inches)
*Material:C1022
*Finish:Black / Gray Phosphated / Yellow / blue Zinc Plated,Nickel Plated.