S-90602A261 5/8"-11 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 tensile strength of 150,000 PSI ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- Superior corrosion resistance from zinc yellow-chromate plating extends service life in harsh environments, minimizing maintenance and replacement costs.
- High hardness rating (Rockwell C32) provides excellent wear resistance and durability under heavy loads and vibration.
- Integrated flange design eliminates the need for separate washers, simplifying installation and providing a larger bearing surface for secure fastening.
- Precision Class 2A thread fit with UNC coarse threading ensures easy assembly and reliable engagement, reducing cross-threading risks.
- Compliance with SAE J429/IFI 111 standards guarantees consistent quality and interchangeability for industrial procurement.
- Fully threaded shank offers maximum grip length and adjustability in demanding applications.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this Grade 8 hex head screw addresses critical challenges in machinery, structural steel, and equipment assembly where vibration and dynamic loads are common. The zinc yellow-chromate plated steel construction provides a robust barrier against oxidation and chemical exposure, significantly enhancing longevity in outdoor or corrosive settings. Its UNC coarse thread and external hex drive facilitate quick installation with standard tools, while the flanged design distributes clamping force evenly to prevent surface damage. Ideal for construction, automotive, and manufacturing sectors, this fastener delivers reliable tensile strength and compliance with SAE J429 specifications, ensuring safety and performance in critical joints.
Specification Summary & Compliance
This product features a Class 2A thread fit with UNC coarse threading (5/8"-11) and meets IFI 111/SAE J429 manufacturing standards. Dimensions include a 2 1/4" length, 15/16" head width, and 1 21/64" flange diameter. It complies with industry regulations for material and performance, including RoHS and REACH environmental directives, ensuring safe and sustainable use in global supply chains.
