Toilet Seat Hinges Screws 2 Pcs Expanding Rubber Bolt Top Nuts Set for Top Mount Toilet Seat Tightening Kit Replacement Universal Toilet Seat Blind Hole Fixing Kit Product description Description: 【 Size】Length is 6.4 cm/2.52 inch and diameter is 1.4 cm/0.55 inch. Please measure before buying to make sure your toilet seat work well.Convenience and saving time. 【Excellent Material】Expandable ball is made of black rubber, white screw with solid brass thread inside is made of stainless steel material, long screws and gaskets are made of stainless steel, soft washers are made of Plastic.Sturdy and durable, rustproof. 【Non Rust Design】 Plastic washers will not rust, better than metal ones. When you tighten the bolts the washers crush down into the holes, you need to be careful not to tight the bolt so much it pushes through the washer. 【Easy To Use】Put the toilet seat bolts in the toilet mounting holes. The rubber grommets have a threaded section so you can just push them into the holes in the top of the toilet pan and when you tighten the screw it expands and tightens itself into the hole. 【Universal Convenient】2 Pieces toilet seat replacement parts kit. If your toilet seat kept moving, please use these toilet seat fixing screws to replace the useless plastic inserts supplied with a new top fix seat. Specification: Material: Stainless Steel Color: black Usage Method: fixed Product Category: cover screw Size(approx.):(W x H)1.4 x 6.4cm/0.55 x 2.52inch, diametre 2.8cm/1.10inch Package Included: 2 Pcs x Toilet Seat Hinges Screws Note: 1.Due to the light and screen difference, the item's color may be slightly different from the pictures. 2.Please allow 1-2 cm differences due to manual measurement.