S-91271A726 1/2"-13 x 3 1/2" IFI 115 12-Point Screws
12-Point Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional load-bearing capacity with 170,000 psi tensile strength for reliable performance in high-stress applications
- Superior thread engagement and vibration resistance due to Class 3A thread fit, ensuring secure fastening in critical assemblies
- High durability and wear resistance from alloy steel construction with Rockwell C37 hardness for extended service life
- Efficient installation and removal with the external 12-point drive and 1/2" drive size, compatible with standard industrial tools
- Enhanced stability and distribution of clamping force through the integrated flange design, eliminating the need for separate washers
- Optimized for coarse thread applications with 1/2"-13 UNC threading, providing quick assembly and reduced cross-threading risks
- Safe for regulated industries with full compliance to RoHS 3 and REACH environmental standards
Professional Applications & Engineering Value
This 12-point flange screw is engineered to address common industrial challenges such as joint failure under dynamic loads and corrosion in harsh environments. Constructed from high-strength alloy steel, it maintains structural integrity in heavy machinery, construction equipment, and automotive assemblies where 170,000 psi tensile strength is critical. The partial threading and Class 3A thread fit ensure precise engagement, reducing the risk of stripping in coarse thread UNC applications. The external 12-point drive allows for high-torque installation, making it ideal for confined spaces in industrial screw applications. Combined with its flanged design, it provides consistent clamping force, minimizing loosening from vibrations and enhancing the longevity of assembled components.
Specification Summary & Compliance
This screw adheres to IFI 115 manufacturing specifications, with precise Class 3A thread fit and 1/2"-13 UNC coarse thread dimensions. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.
