LASCO 04-3675 Toilet Tank to Bowl Solid Brass 3/8-Inch by 3-1/8-Inch Heavy Duty Bolts with Rubber and Brass Washers and Hex Nuts 3/8 Inch x 3-1/8 Inch Heavy Duty Toilet Tank To Bowl Kit, Includes Each Brass Heavy Duty Bolts and Each Brass Washers, Rubber Washers And Hex Nuts 3/8-Inch X 3-Inch heavy duty bolts Country of Origin: China Use to attach toilet tank to bowl Easy DIY project, fits most