Description
The 1/2"-13 Button Head Cap Screw is a durable, medium-to-heavy-duty fastener designed for applications requiring both structural strength and a smooth, low-profile finish. With its rounded button head and internal hex drive, this screw delivers secure torque application and an attractive, snag-resistant appearance—ideal for machinery, enclosures, and assemblies where fasteners may be visible or accessed frequently.
Specifications
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Thread Size: 1/2"-13 (Unified National Coarse)
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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 3/4" to 6")
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Material: Commonly alloy steel; also available in stainless steel, black oxide, or zinc-plated 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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Low-Profile Rounded Head: Provides a clean, smooth surface that reduces snag risk and enhances safety in moving assemblies or exposed locations.
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High Strength Performance: 1/2" diameter coarse-threaded design delivers excellent clamping force for mid- to high-load applications.
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Reliable Torque Application: The internal hex socket allows for precise, slip-resistant torque application in confined or flush-mount setups.
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Finish & Material Variety: Stainless steel and coated options offer enhanced corrosion resistance in outdoor or harsh environments.
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Precision Machining: Threads conform to UNC standards for consistent and secure mating with tapped holes or standard nuts.
Typical Applications
The 1/2"-13 Button Head Cap Screw is ideal for medium- to heavy-duty mechanical and structural assemblies across industrial sectors:
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Machinery Panels, Guards, and Doors
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Structural Steel and Framing Connectors
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Equipment Enclosures and Chassis
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Automotive and Off-Road Component Mounting
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Agricultural Equipment and Implements
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Modular Fixtures and Industrial Brackets
