S-91271A849 3/4"-10 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 tensile strength of 170,000 PSI ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- Precision Class 3A thread fit provides superior engagement and vibration resistance, minimizing loosening in dynamic environments.
- Integrated flange design eliminates the need for a separate washer, simplifying installation and distributing load more effectively.
- 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 application with standard tools, ensuring secure fastening in confined spaces.
- UNC coarse threading enables quick assembly and disassembly, improving efficiency in maintenance and production lines.
- Partial threading provides unthreaded shank strength where needed, optimizing clamp load and shear resistance.
Professional Applications & Engineering Value
This 12-point flanged screw is engineered for demanding applications where high tensile strength and reliable fastening are critical. The alloy steel material, combined with Rockwell C37 hardness, ensures long-term performance in heavy machinery, construction equipment, and automotive assemblies, resisting fatigue under cyclic loads. The flanged design increases bearing surface, preventing surface damage and reducing point load stress. With UNC coarse threads and Class 3A fit, it offers precise, vibration-resistant connections in structural frameworks and high-torque environments, streamlining installation while meeting rigorous industrial standards.
Specification Summary & Compliance
This product features a 3/4"-10 UNC coarse thread with Class 3A thread fit for precise dimensional accuracy, ensuring consistent performance. It complies with IFI 115 specifications for quality and manufacturing standards. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations for hazardous substances.
