3/8-inch anchor screws are used with Van Marks Trim-A-Gutter brackets. They install through the gutter hood and into bracket.
Van Mark Model No. 3030
Product Code: T23818
Product Code: T21755
Product Code: T12748
Product Code: T12750
Product Code: T12746
Product Code: T20764
Product Code: T12589
Product Code: T6060
Product Code: T6057
Product Code: T16882