Description
🔩 Heavy-duty galvanized flat washer 5/16″ for industrial fastening
The galvanized flat washer 5/16″ is a reliable and corrosion-resistant component designed for a wide variety of mechanical and structural applications. Manufactured from carbon steel and coated with a protective zinc layer, this washer is ideal for outdoor, humid, or corrosive environments where traditional washers might degrade.
This unbranded yet high-quality washer ensures strength, surface protection, and long-term durability, making it an essential part of any fastening system.
✅ Key features
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Standard 5/16″ inner diameter (7.9 mm)
 Ideal for use with bolts and screws of 5/16″ diameter, offering snug and secure installation.
 
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Zinc galvanized finish
 Provides excellent corrosion resistance, making this washer suitable for use in moisture-prone or outdoor areas.
 
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Flat washer form A
 Distributes load evenly across surfaces, preventing damage and improving fastening performance.
 
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Unbranded, industrial-grade
 Delivers high performance without added branding costs — perfect for contractors and OEMs.
 
🛠️ Applications
The galvanized flat washer 5/16″ is commonly used in:
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Construction and framing: Reinforcing bolts in timber or metal framing exposed to the elements. 
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HVAC and plumbing: Suitable for mounting ductwork or pipe brackets in semi-exposed environments. 
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Agricultural machinery: For use in machinery and trailers that operate outdoors. 
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Electrical panels: Protects surfaces and distributes load in enclosures and panel boards. 
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General maintenance and repair: A must-have for facility technicians and toolboxes. 
💡 Why galvanized?
The galvanized flat washer 5/16″ offers far better resistance to rust compared to untreated steel washers. Whether you’re assembling a fence, anchoring outdoor structures, or securing mechanical components in a humid space, this washer ensures long-term reliability without premature degradation.
 
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