Top Fix Toilet Seat Grommets/Well Nuts - secure fit

These top-fix toilet seat grommets (well nuts) provide a secure and reliable fixing solution for installations where underside access to the pan is restricted. The kit includes plastic sleeves with metal inserts and 43 mm screws, designed for pan hole diameters of 14–16 mm. When the screw is tightened, the metal insert compresses and levels up, expanding the sleeve to form a strong, vibration-resistant anchor against the pan.

Ideal for close-coupled, back-to-wall, and wall-hung toilets, these grommets offer durable corrosion resistance and a clean, concealed finish. Easy to install without the need to remove the toilet or reach underneath, the set is suitable for domestic and commercial applications where a neat, secure seat attachment is required.