We also supplied with plastic wing nut and washer for standard bottom installation. These are designed for toilet pan fixing, fit for most standard toilet seats and top fix hinge. Usage:Perfect for back to wall or wall hung toilet pans.
6 Pack Toilet Seat Screws, Hinges, Rubber Top Nuts, Fixings, Blind Hole Fittings
6-Pack Toilet Seat Bottom-Mount Fixing Kit for M6 Bolts - PP Plastic Wing Nuts & 304 Stainless Steel Washers (Nuts and Washers Only, M6 Bolts Not Included)