Description
Premium Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 9/16-18 x 2-1/4 are designed for heavy-duty fastening applications where strength and reliability matter. The Grade 8 steel delivers high tensile strength suitable for demanding machinery and structural joints. The plain (uncoated) finish provides a clean, rugged look and is ideal for indoor or protected environments where corrosion resistance is not critical.
Specifications
- Head type: Hex head
- Material: Grade 8 steel
- Finish: Plain (uncoated)
- Thread: 9/16-18 (UNC)
- Length: 2-1/4 inches
- Country of origin: USA Made
Applications: These screws are suited for automotive assemblies, heavy equipment, machinery, and industrial construction where high clamping force is required. The coarse thread (18 threads per inch) enables quick, secure engagement in a wide range of materials, including steel and cast iron, with good vibration resistance when paired with proper nuts or tapped holes.
Why choose Grade 8 steel hex head cap screws? They offer superior strength-to-weight ratio and improved torque handling over lower-grade fasteners, ensuring reliable performance under heavy loads. The USA-made designation confirms strict quality control and tight tolerances.
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