PolyX Fixing Buttons - 25mm - White

No, these are specifically designed for 25mm polycarbonate sheets to ensure the screw and casing depth match the panel thickness.

Yes, each of the 10 buttons in the box comes with its own screw and cap.

These are primarily designed for timber rafters. Using them on metal would require self-drilling metal screws which are not included.

Yes, the PVC casing is constructed to withstand outdoor exposure and maintain its structural integrity.

This depends on your rafter spacing and wind load, but a common rule is to space them every 400-600mm along the support beams.

Verify that the screw has gripped the timber rafter correctly; if the timber is rotten or stripped, relocate the fixing slightly to a solid area.

Ensure the button was not overtightened, which can warp the seal, and verify that the cap is fully snapped into the closed position.

This is often caused by lack of pre-drilling. Remove the button, enlarge the hole in the polycarbonate, and reinstall without overtightening.