S-91271A718 1/2"-13 x 1 3/4" 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 tensile strength of 170,000 psi ensures reliable performance under extreme loads, reducing the risk of fastener failure in critical applications.
- Precision Class 3A thread fit provides superior engagement and vibration resistance, minimizing loosening in high-stress environments.
- Integrated flange design eliminates the need for a separate washer, simplifying installation and providing a larger bearing surface for improved load distribution.
- High-strength alloy steel construction with Rockwell C37 hardness offers excellent durability and resistance to wear and deformation.
- External 12-point drive allows for high-torque installation with standard tools, ensuring secure fastening in confined spaces.
- Coarse UNC threading enables quicker assembly and reduced cross-threading risk, boosting efficiency in industrial settings.
- Full compliance with IFI 115, RoHS 3, and REACH guarantees material safety and adherence to international industrial and environmental standards.
Professional Applications & Engineering Value
This 12-point flanged screw is engineered to address common industrial challenges such as vibration-induced loosening and high tensile stress requirements. Constructed from high-strength alloy steel, it maintains integrity under loads up to 170,000 psi, making it ideal for heavy machinery, structural assemblies, and automotive systems. The Class 3A thread fit and coarse UNC spacing ensure precise, reliable fastening that withstands dynamic forces. The integrated flange distributes clamping force effectively, preventing surface damage and reducing assembly time. Fully compliant with IFI 115 standards and environmental regulations, it offers a dependable solution for engineers seeking durability, efficiency, and regulatory adherence in demanding applications.
Specification Summary & Compliance
This screw features a 1/2"-13 UNC coarse thread with a Class 3A precision fit, ensuring tight tolerances for secure fastening. It adheres to IFI 115 specifications for dimensional and mechanical properties, and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for industrial use without hazardous substances.
