Hard-to-Find Fastener 014973403300 Coarse Rod Coupling Nuts, 1/4-20, Piece-25 Diameter 1: 1/4-Inch Diameter 2: 7/16-Inch Length: 1-3/4-Inch Material: Steel Finish: Zinc Diameter 1: 1/4 inch Diameter 2: 7/16 Inch Length: 1-3/4 inch Material: Steel Finish: Zinc