Hexagon washer head 8mm.
Only screw or with mounted washer.
Beam self drilling bimetal stainless steel screw hexagonal washer head
DIN-7504-N HC A2 self drilling round screw square mark
DIN-7504-N HP A2 self drilling screw rounded head
DIN-7504-N HC self drilling round screw square mark
DIN-7504-P HP self drilling screw countersunk head
DIN-7504-N HP self drilling screw rounded head