Hex Head Self Drilling Screw with EPDM washer 1)Diameter: 3. ... , 6#~14# 2)Length: 9.5~250mm, 3)hex self drilling scr Hex Head Self Drilling Screw with EPDM washer1)Standard: DIN ... : AB TYPE,A TYPE6)Head Type:Pan Head,Flat Head,Hex Head,Bugle Head,Wafer Head,Truss Head7)Point Type:Sharp ... , Zinc, Black Phosphated, Grey Phosphated, Nickel,Cooper,Dacroment,Ruspert the Hex Washer Head Self Drilling screw