Hard-to-Find Fastener 014973100520 Coarse Hex Bolts, 3/8-16 x 1, Piece-100 Diameter: 3/8-Inch Length: 1-Inch Material: Steel Finish: Zinc Head Style: Hex (9/16 Wrench) Diameter: 3/8" Length: 1 inch Material: Steel Finish: Zinc Head Style: Hex (9/16 Wrench)