For Bath Royale toilet seats onlyAlternative to "Simplified" mounting hardware. Recommended if mounting holes are NOT industry standard (round and 5/8 inch diameter).
Parts (2 each): Stainless steel screws (1/4 in. thread), clear ribbed inserts, black rubber washers, white plastic washers and white plastic wing nuts.
NOTE: For final tightening, hold wing nut and tighten very firmly with screwdriver.