Fractional Sizes Grade 2 Hex Head Cap Screw
Fractional Size Grade 2 Hex Head Cap Screws: Dependable Strength for General-Purpose Fastening Applications
The Fractional Size Grade 2 Hex Head Cap Screw is a versatile and reliable fastener designed for general-purpose applications across manufacturing, construction, automotive, and maintenance industries. Known for its six-sided hexagonal head, this screw allows for easy wrenching and high torque capability, ensuring a secure and tight fit every time.
Manufactured from low or medium carbon steel, Grade 2 hex head cap screws are the most commonly used fasteners for light- to medium-duty applications. They are ideal for assemblies where high strength is not a primary requirement but durability, affordability, and versatility are essential. Typical uses include machinery assembly, woodworking, agricultural equipment, and light fabrication projects.
Available in fractional (Fractional) sizes, these screws conform to ASME B18.2.1 dimensional standards and SAE J429 mechanical property requirements. They feature a minimum tensile strength of 60,000 psi (unheated) and up to 74,000 psi (heat-treated) depending on the material condition. This strength level ensures reliable performance in non-critical bolting and general-purpose fastening.
Surface finishes such as zinc plating provide corrosion resistance, while plain steel offers cost-effective solutions for indoor or dry environments. These fasteners are compatible with standard hex nuts and washers, providing a simple yet strong connection that resists loosening under vibration.
Key Features:
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Made from low/medium carbon steel for economy and durability
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Suitable for light- and medium-duty fastening applications
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Available in fractional (Fractional) sizes for U.S. standard use
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Conforms to ASME and SAE specifications for reliability
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Offered in plain or zinc-plated finishes for corrosion protection
For everyday fastening where strength, simplicity, and value matter most, the Fractional Size Grade 2 Hex Head Cap Screw delivers reliable performance and the American-made quality professionals trust.