Carbon Steel Hex Nuts 24Pcs, Hex Nuts Assortment Kit Washer, 1 Inch Hex, Decks ? High-Quality Material?Hexagon nut is made of high-quality carbon steel by cold heading and turning. The surface of the nut washer is treated with the 48-hour black electrophoretic coating, Anti-rust salt spray test for 48 hours, daily life scene anti-rust. (Do not soak in water for a long time) ?Item Size?inner diameter: ? 8.5. Hexagon opposite side size: 27 0.3mm, height: 22 0.1mm, flange bottom diameter: 36 0.1mm. ?Applicable?Wood grain screws under ?8 diameters. ?Wide Use?The hex cap nuts decorative washer can be used for the hardware decoration of the courtyard, pavilion, or deck, and it provides a structural load rating solution. ?Attention?Do not use it in the environment with chemical materials, do not use wrench tools with hydraulic torque for installation, and do not use metal products to knock the nut surface.