S-91271A548 1/4"-20 x 2 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 demanding applications, reducing the risk of fastener failure.
- Precise Class 3A thread fit provides superior engagement and vibration resistance, enhancing assembly integrity.
- Flanged design eliminates the need for a separate washer, speeding up installation and providing a larger bearing surface.
- High-strength Alloy Steel construction with Rockwell C37 hardness offers excellent durability and wear resistance.
- External 12-point drive allows for high-torque application with standard tools, ensuring secure fastening in confined spaces.
- Coarse UNC threading enables quicker installation and better performance in materials prone to stripping.
- Compliance with IFI 115, RoHS 3, and REACH guarantees material safety and meets rigorous industrial standards.
Professional Applications & Engineering Value
This 1/4"-20 UNC 12-point screw is engineered for heavy-duty industrial applications where reliability is non-negotiable. The Alloy Steel material, combined with a Rockwell C37 hardness and 170,000 psi tensile strength, addresses common failure points in high-stress environments such as machinery, automotive assemblies, and structural frameworks. The flanged design distributes clamping force evenly, preventing surface damage and loosening under vibration. With a Class 3A thread fit and coarse thread spacing, it ensures rapid, secure fastening even in challenging materials, reducing installation time and maintenance costs. Ideal for external 12-point drive systems, it supports efficient torque transfer in space-constrained setups, making it a top choice for engineers prioritizing durability and regulatory compliance.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC thread with Class 3A precision fit and coarse thread spacing, ensuring tight tolerances per inch-system standards. It is manufactured to meet IFI 115 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for global industrial use without hazardous substances.
