#black oxide coated steel

Prime-Line 9176963 Socket Head Cap Screws, Hex Drive, 4-40 X 1/4 in, Black Oxide Coated Steel, 25-Pack

Prime-Line 9176982 Socket Head Cap Screws, Hex Drive, 4-40 X 3/8 in, Black Oxide Coated Steel, 25-Pack

Prime-Line 9180497 Socket Head Cap Screws, Class 12.9 Metric, Hex Drive, M3-0.5 X 30MM, Black Oxide Coated Steel, 10-Pack

Prime-Line 9177783 Socket Head Cap Screws, Hex Drive, 10-32 X 5/8 in, Black Oxide Coated Steel, 25-Pack

Prime-Line 9178369 Socket Head Cap Screws, Hex Drive, 1/4 in-28 X 3/4 in, Black Oxide Coated Steel, 10-Pack