Kohler GP52050 Accessory Pack, Assorted Colors, 5/16" X 3"

Amazon

Tank bolt assembly kit for older two-piece KOHLER toilets Used for two or three bolt connections Includes screws, washers, gaskets and nuts, Weight: 0.2 pounds, Manufacturer: KOHLER

Radwell UK

KIT, TANK TO BOWL ASSEMBLY KIT, USED FOR 2 OR 3 BOLT CONNECTIONS, 3 X SCREWS, 3 X WASHERS, 3 X NUTS, 3 X 3/4 IN GASKETS, 6 X 1 IN GASKETS