S-92323A514 1/4"-20 x 5/8" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws
Medium-Strength Grade 5 Steel Serrated-Flange 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 – With 110,000 psi tensile strength, this screw withstands high-stress applications, reducing the risk of fastener failure in demanding environments.
- Superior Corrosion Resistance – Zinc-plated steel construction provides reliable protection against rust and corrosion, extending service life in industrial settings.
- Secure Locking & Vibration Resistance – The serrated flange design prevents loosening under vibration, ensuring stable connections without the need for additional washers.
- Easy Installation & High Torque Capability – External hex drive allows for straightforward installation with common tools and enables high torque application for secure fastening.
- Precise Thread Fit – Class 2A UNC coarse threads ensure smooth engagement and reliable performance, minimizing cross-threading risks.
- Heavy-Duty Material Hardness – Rockwell C22 hardness offers excellent durability and wear resistance, maintaining integrity under repeated use.
- Full Thread Engagement – Fully threaded design provides consistent holding power along the entire length, ideal for varied material thicknesses.
Professional Applications & Engineering Value
Engineered for industrial-grade reliability, this Grade 5 zinc-plated steel hex head screw addresses common fastening challenges in machinery, automotive, and structural assemblies. The UNC coarse thread and Class 2A fit enable quick, secure installation in coarse-grained materials, reducing assembly time while preventing stripping. The serrated locking flange eliminates the need for separate lock washers, providing vibration-resistant performance in dynamic applications. With 110,000 psi tensile strength and zinc plating, it resists environmental corrosion and maintains clamp load under heavy loads, making it a trusted choice for heavy-duty fastening where compliance and durability are critical.
Specification Summary & Compliance
This screw meets IFI 111 / SAE J429 Grade 5 specifications, with UNC coarse threading and Class 2A thread fit ensuring dimensional accuracy and interchangeability. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in regulated industries without hazardous substances.
