S-91271A558 1/4"-20 x 3" 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 applications, reducing the risk of fastener failure.
- Alloy steel construction with Rockwell C37 hardness provides superior durability and resistance to wear, extending service life in demanding environments.
- Class 3A thread fit offers precise, tight tolerances for secure fastening and vibration resistance, minimizing loosening over time.
- 12-point external drive and flange design allows for easy installation with standard tools and eliminates the need for separate washers, speeding up assembly.
- Partially threaded UNC coarse spacing enables quick engagement and strong holding power, ideal for materials where coarse threads are preferred.
- Compliance with IFI 115, RoHS 3, and REACH ensures environmental safety and meets industry standards for quality and regulatory requirements.
- Right-hand thread and inch system measurement provide compatibility with common industrial equipment, facilitating seamless integration into existing setups.
Professional Applications & Engineering Value
This 12-point flange screw is engineered to address critical challenges in heavy-duty assembly, such as vibration-induced loosening and high tensile stress. Crafted from alloy steel with a Rockwell C37 hardness, it withstands harsh conditions in machinery, automotive, and construction sectors. The UNC coarse thread and Class 3A fit ensure rapid, secure fastening in materials like cast iron or steel, reducing installation time while maintaining integrity. The integrated flange distributes load evenly, preventing surface damage and enhancing joint stability. Ideal for applications requiring high-strength fasteners with precise external drive compatibility, this screw delivers consistent performance and longevity, supporting efficient B2B procurement for industrial projects.
Specification Summary & Compliance
This product adheres to precise dimensional standards, including a Class 3A thread fit and UNC coarse spacing for accurate engagement. It meets IFI 115 specifications for quality assurance and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory alignment in industrial use.
