May I know the thickness of aluminum. We will make fiber a little bigger. To consider the thickness of aluminum as the main, 10 width mm can shoot screw or the rivet, ready to do waterproofing, and aluminum to thick at least 0.5 mm. Which you can learn from your team, by shoot the screws compared with the rivet, see if it's collapse, it attracts? If shot and not folded down ก็ถือ if available.