Rawlplug UNO Universal Contract Wall Plug - 6mm - Red - 288 Pack

The screw size depends on the item you are fixing and the required load-bearing capacity. Use screws with a diameter appropriate for the plug, and a length that fully engages the plug.

Yes, they can be used outdoors, but ensure the screw is suitable for outdoor use to prevent corrosion.

If the hole is too large, the plug may not grip properly. Consider using a different plug designed for larger holes or filling the hole with a suitable filler before inserting the plug.

If the plug is not holding, try removing the screw and pulling the plug out with pliers or a screw extractor. If the plug is flush, you may need to use a screw to extract it.

While it is possible to reuse them, performance may be compromised, especially in softer materials. It is best to use new plugs for critical applications.

These plugs are suitable for use in concrete, brickwork, stone, blockwork, plasterboard, and more.

The lip prevents the plug from slipping into oversized holes, ensuring a secure fit and preventing it from being lost inside the wall.

Ensure the hole size is correct. If the hole is too large, consider using a slightly larger screw or a different plug type designed for more demanding applications.

Make sure the screw diameter is appropriate for the plug. Check if the screw is stripping the plug material. If so, try a different screw or a different plug.

Ensure you are using the correct drill bit size for your wall material.