Hard-to-Find Fastener 014973254278 Grade 8 Fine Hex Cap Screws, 9/16-18 x 1-1/2, Piece-10 Diameter: 9/16-Inch Length: 1-1/2-Inch Material: Steel Finish: Yellow Zinc Head Style: Hex (13/16 Wrench) Diameter: 9/16" Length: 1-1/2 inch Material: Steel Finish: Yellow Zinc Head Style: Hex (13/16 Wrench)