Hex Head Self Drilling Screw with EPDM washer 1)Diameter: 3.5mm~6.3mm, 6#~14# 2)Length: 9.5~250mm, 3)hex self drilling scr Hex Head Self Drilling Screw with EPDM washer1)Standard: DIN, ASTM,AS,GB2)Material: Carbon Steel,SUS3)Diameter: 3.5mm~6.3mm, 6#~14#4)Length: 9.5~110mm, 3/8"~4-1/2"5)Thread: AB TYPE,A TYPE6)Head Type:Pan Head,Flat Head,Hex Head,Bugle Head,Wafer Head,Truss Head7)Point Type: ...