Hard-to-Find Fastener 014973261733 Grade 8 Fine Hex Nuts, 7/16-20, Piece-25 Diameter: 7/16-Inch Material: Steel Finish: Yellow Zinc Driver Type: 11/16 Wrench Thread Type: 20 (Fine) Diameter: 7/16" Material: Steel Finish: Yellow Zinc Driver Type: 11/16 Wrench Thread Type: 20 (Fine)