... .3 3.Length:13mm-300mm Hot Sale Truss Head Self Drilling Screw 1. Material:Carbon Steel-C10222.Head:Truss Head3.Drive:Phillips4.Diameter:M4.2 ... ,A Type5. Head Type:Pan Head,Flat Head,Wafer Head,Truss Head,Pan framing Head 6.Recess:Phillips,Pozi7.Point Type:Tip Point,Self drilling point8.Grade:4 ... feel free to contact with us,as follows: Hot Sale Truss Head Self Drilling Screw