Description
The 5/8"-16 Button Head Cap Screw is a medium-to-heavy-duty fastener designed for assemblies that require both strength and a clean, low-profile finish. Featuring a rounded button head and a recessed internal hex drive, this screw offers reliable torque transfer while maintaining a smooth exterior, making it ideal for exposed or safety-sensitive installations.
Specifications
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Thread Size: 5/8"-16 (Unified National Fine)
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Head Type: Rounded button head with internal hex drive
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Drive Type: Hex socket (Allen)
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Length: Available in standard lengths (typically from 1" to 4")
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Material: Commonly alloy steel; also available in stainless steel, zinc-plated, or black oxide finishes
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Finish Options: Black oxide, plain, zinc-plated, or stainless
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Grade: Typically Grade 8 (hardened alloy steel), or 18-8 / 316 stainless steel for corrosion resistance
Key Features
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Rounded Low-Profile Head: Offers a smooth, finished look while reducing the risk of catching on surfaces or interfering with moving parts.
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Reliable Strength: The 5/8" diameter fine-thread profile provides enhanced load-bearing capability and vibration resistance for dynamic applications.
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Hex Socket Control: Internal hex drive allows for consistent torque application and clean installation in flush-mount or counterbored settings.
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Material and Finish Variety: Available in corrosion-resistant stainless steel and coated finishes for indoor or outdoor use.
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Precision Machining: Threads meet Unified National Fine (UNF) standards for tight, secure engagement with tapped holes or high-strength nuts.
Typical Applications
The 5/8"-16 Button Head Cap Screw is ideal for medium-to-heavy-duty applications where a smooth appearance and reliable fastening are required:
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Machinery Covers and Guards
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Fabricated Steel and Frame Assemblies
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Equipment Panels and Access Doors
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Automotive and Off-Road Component Mounting
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Agricultural and Construction Equipment
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Safety-Critical and Vibration-Prone Assemblies
