S-92316A213 1/4"-20 x 2 1/4" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws
High-Strength Grade 8 Steel Flanged Hex Head 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 strength and durability with Grade 8 classification and 150,000 psi tensile strength, ensuring reliable performance in high-stress industrial environments.
- Superior corrosion resistance from the black-phosphate steel coating, extending service life in demanding conditions.
- Precise and secure fastening with Class 3A thread fit and UNC coarse spacing, reducing the risk of cross-threading and providing consistent engagement.
- Enhanced load distribution due to the flanged design, minimizing surface damage and improving joint stability.
- Easy installation and removal with an external hex drive and standard 3/8" head width, compatible with common tools for efficient maintenance.
- Versatile partial threading allowing for adjustable clamping force and ideal for applications requiring precise tension control.
- Compliance with industry standards including SAE J429, RoHS 3, and REACH, ensuring safety and environmental responsibility.
Professional Applications & Engineering Value
This Grade 8 hex head screw is engineered to address critical challenges in heavy machinery, automotive assembly, and structural frameworks where vibration resistance and high tensile loads are common. Made from black-phosphate steel, it combats rust and wear in harsh environments, reducing maintenance downtime. The UNC coarse thread and Class 3A fit ensure quick, reliable installation without stripping, while the flanged feature distributes pressure evenly to prevent material deformation. Ideal for securing components in industrial equipment, this partially threaded screw offers flexibility in joint design, supporting efficient B2B procurement for durable fastener solutions.
Specification Summary & Compliance
This fastener adheres to precise dimensional standards, including a Class 3A thread fit for tight tolerances and UNC coarse spacing. It meets manufacturing specifications under IFI 111 (SAE J429) for Grade 8 strength, with a tensile rating of 150,000 psi and Rockwell C32 hardness. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it ensures environmental safety and regulatory adherence for industrial use.
