... Wafer Hex Washer Pan Framing Bugle Hex Head Self Drilling Screw with EPDM washer 1)Head : hex head self drilling screw2)Standard: DIN, ASTM,AS,GB2)Material ... TYPE,A TYPE6)Head Type:Pan Head,Pan Framing,Flat Head,Hex Head,Bugle Head,Wafer Head,Truss Head7)Point Type: Diamond Sharp Point,drilling Point8)Drive ... Zinc Plated , Black Phosphated, Grey Phosphated, Nickel,or as request Self Drilling Screw