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Vichok Hardware

DIN912 M36 M42 Socket Cap Screw 12.9 Grade Alloy Steel Super Long Extended Half Thread Machine Screw

DIN912 M36 M42 Socket Cap Screw 12.9 Grade Alloy Steel Super Long Extended Half Thread Machine Screw

$8.86 USD
$8.86 USD $8.86 USD
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Product Overview
 
Upgrade your industrial fastening solutions with our 12.9 Grade Alloy Steel DIN912 Cylindrical Head Socket Cap Screws—engineered for heavy-duty applications requiring uncompromising strength and precision. Available in M36 and M42 sizes, these super long extended half-thread machine screws deliver reliable performance for machinery assembly, mold manufacturing, construction equipment, and precision engineering projects. Compliant with the DIN912 international standard, they meet the strict quality requirements of professional workshops and industrial production lines.
 
Key Features & Benefits
 
  1. 12.9 Grade High-Strength Alloy Steel Construction
     
    Crafted from premium alloy steel and heat-treated to achieve 12.9 grade tensile strength, these screws boast exceptional hardness and shear resistance, capable of withstanding high torque and heavy loads without deformation or breakage. Far superior to ordinary carbon steel fasteners, they are ideal for heavy machinery, hydraulic equipment, and high-pressure industrial environments.
     
  2. DIN912 Compliant Precision Design
     
    Manufactured to the rigorous DIN912 standard, each screw features a precise cylindrical head and smooth inner hexagon (socket cap) drive that ensures tight, slip-free installation with a hex key. The half-thread design balances strong thread engagement with enhanced shaft rigidity, preventing loosening even under continuous vibration—perfect for dynamic equipment like motors, pumps, and conveyor systems.
     
  3. Super Long Extended Length for Versatile Applications
     
    Our extended-length design fills the gap for projects requiring longer fastening reach, such as large mold bases, heavy structural components, and deep assembly installations. The half-thread structure reduces weight while maintaining fastening stability, making these screws a go-to choice for engineers seeking both performance and efficiency.
     
  4. Corrosion-Resistant Surface Treatment
     
    The screws are finished with a high-quality anti-rust coating that provides reliable protection against mild humidity, oil, and industrial debris in workshop environments. This treatment extends service life and reduces maintenance costs, ensuring consistent performance even in long-term use.
     
  5. Easy Installation & Universal Compatibility
     
    Designed for seamless integration with standard hex key tools, these cylindrical head socket cap screws eliminate the need for specialized equipment, speeding up assembly and maintenance workflows. Compatible with M36 and M42 nuts and tapped holes, they fit a wide range of industrial machinery and custom fabrication projects.
     
 
Specifications
 
  • Grade: 12.9 Grade Alloy Steel
  • Standard: DIN912
  • Sizes: M36, M42
  • Thread Type: Extended Half Thread
  • Drive Type: Cylindrical Head Socket Cap (Inner Hexagon)
  • Applications: Heavy machinery assembly, mold manufacturing, construction equipment, precision engineering, industrial fixture installation
 
Why Choose Our Screws?
 
Whether you’re a professional mechanic, factory manager, or DIY enthusiast tackling heavy-duty projects, our DIN912 12.9 grade screws offer unmatched value—combining industrial-grade strength, precision engineering, and long-lasting durability. We prioritize quality control at every production stage, ensuring each screw meets strict dimensional and performance standards.
 
Warm Tips
 
  • Please confirm the required length and thread specifications before purchase to ensure perfect compatibility with your project.
  • Use a matching hex key for installation to avoid damaging the socket cap.
  • Store in a dry, ventilated place to preserve the anti-rust coating when not in use.
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