Outdoor Accents Black Powder-Coated Hex-Head Washer (8-Pack) by | Jul 22, 2026Fastener Callout Size 0.220 in. x 3-1/2 in. or 5-1/2 in. Fastener Material Steel. Fastener Plating Electro Galvanized Zinc. Fastener Type Other. The washer is code-listed (IAPMO). Thread Style Box Thread.
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