S-91271A540 1/4"-20 x 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 load-bearing capacity with 170,000 psi tensile strength for reliable performance in high-stress industrial applications.
- Superior wear resistance due to Alloy Steel construction and Rockwell C37 hardness, extending service life in demanding environments.
- Precise, secure fastening ensured by Class 3A thread fit, minimizing the risk of loosening under vibration and dynamic loads.
- Efficient installation and removal with the external 12-point drive and flange design, providing enhanced torque application and eliminating the need for separate washers.
- Broad compatibility with UNC coarse threading (1/4"-20), making it ideal for quick assembly in a wide range of machinery and equipment.
- Regulatory peace of mind as it is RoHS 3 and REACH compliant, meeting strict environmental and safety standards for global supply chains.
- Flanged design for increased stability, distributing clamp load over a wider area to prevent surface damage and improve joint integrity.
Professional Applications & Engineering Value
This 12-point flanged screw is engineered to address critical challenges in heavy-duty assembly, where vibration resistance, high tensile demands, and corrosion considerations are paramount. The alloy steel material, combined with a Rockwell C37 hardness rating, ensures durability against abrasion and fatigue, making it suitable for construction equipment, automotive subsystems, and industrial machinery. The fully threaded UNC coarse thread and Class 3A fit provide superior grip and alignment, reducing the risk of cross-threading and ensuring consistent clamping force. Its external 12-point drive allows for high-torque application in confined spaces, enhancing efficiency in maintenance and production lines while the integrated flange simplifies installation and improves load distribution.
Specification Summary & Compliance
This screw adheres to precise dimensional standards with a Class 3A thread fit for tight tolerances and a 1/4"-20 UNC coarse thread. It is manufactured in compliance with IFI 115 specifications and is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring it meets international environmental and safety regulations for industrial use.
