Surface treatments: plain, black, zinc-plated (ZP), yellowzinc-plated (YZP), hot-dipped galvanizing (HDG), Dacromet, nickel-and brass-plated Grade: A490 Standard: ASTM Thread: UNC Sizes: 1/2 to 1 1/2 inches Packing: small box/carton, bulk cartons/pallet and gunnybag Competitive Advantages 1). Top Quality control 2). Competitive Price 3). Various of Design 4). OEM Accepted 5). Customer's Design and Logo are Welcome