Zinc Plated USS Flat Washers
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A zinc plated steel Type A Wide (USS) flat washer designed to evenly distribute load, dampen vibration, prevent bolt pull‑through, and serve as a spacer in wood or metal projects.
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Material & Finish: Steel with zinc plating for corrosion resistance. Always match washer and fastener materials/finishes to avoid galvanic corrosion.
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Standard: ASME B18.21.1 Type A covers flat washers #2–3″, with SAE profiles for #2–#12 and USS for 1 5/8″–3″.
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Installation: Use with like‑finished fasteners, such as our zinc‑plated carriage bolts or hex bolts.
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Use Cases: Deck framing for wood protection; machinery joints for vibration stability.
Refund Policy
We offer a straightforward 30-day return policy for most unused items in their original condition. If something's not right, we'll work with you to make it right. Read our full refund policy.