Description
The 2" USS Flat Washer is a heavy-duty, general-purpose washer designed for use with 2-inch diameter bolts, screws, and studs. Built to United States Standard (USS) dimensions, this washer features an extra-large outer diameter and robust thickness, making it ideal for distributing substantial loads and protecting structural materials in the most demanding industrial and construction environments.
Specifications:
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Inner Diameter (I.D.): 2-1/16"
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Outer Diameter (O.D.): 5-1/2"
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Thickness: 1/2" (nominal)
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Standard: USS (United States Standard)
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Material: Commonly low carbon steel; also available in stainless steel, brass, or specialty alloys
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Finish Options: Plain, zinc-plated, hot-dip galvanized, black oxide, or other corrosion-resistant coatings
Key Features:
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Maximum Load Spreading: Oversized outer diameter minimizes pressure on connection surfaces, preventing crushing and deformation—especially important with softer base materials.
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Designed for 2" Fasteners: Clearance hole allows for straightforward installation and accommodates normal bolt tolerances.
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USS Profile Fit: More forgiving than SAE washers, suitable for large-scale structural connections where minor alignment variances are acceptable.
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Smooth Load Surface: Supports even torque application and tight clamping in high-strength fastening scenarios.
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Protective Finishes: Multiple corrosion-resistant options make this washer suitable for marine, outdoor, and chemical-exposure environments.
Common Applications:
The 2" USS washer is ideal for the most rugged and large-scale applications, including:
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Bridge and heavy infrastructure construction
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Industrial machinery and equipment assembly
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Mining, agricultural, and oilfield hardware
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Steel structural framing and anchor bolt assemblies
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OEM manufacturing and heavy-equipment maintenance
