1 Pair of Top Fix Screw Rubber Bung Pack (2 Pieces)

Great for Top Fix Fitting Toilet Seats and Back To Wall Units

Name: Toilet expansion bolt
Color: Black + Silver
Material: Rubber + Stainless Steel
Bolt size: M5 x 45mm
Rubber Size : Length 40mm, Width 13.5 mm, Flange 21mm, 
rubber center is 17.8mm (this part contracts to allow you to push into hole and ensuring a tight fit).  
Suitable for 13mm - 16mm Holes

Allows you to repair or renew a toilet seat for a back to wall pan.
  
No need for a top fix toilet seat,  just purchase a cheaper standard seat and use these fixings/fittings 
instead of the ones that come supplied with the new toilet seat. 
 
Simply push the rubber grommet through the hole in your toilet. 

Place the seat on top and use the bolt supplied, instead of the normal fixings.
 
See the photo that shows how the bolts work..