S-90393A119 5/16"-18 x 1 1/2" 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 load-bearing capacity with 120,000 psi tensile strength for reliable performance in demanding applications.
- Superior wear resistance due to Rockwell C22 hardness, ensuring long-term durability and reduced replacement needs.
- Precise and secure fastening achieved through Class 2A thread fit, minimizing the risk of loosening under vibration.
- Enhanced stability and load distribution from the integrated flange, eliminating the need for separate washers.
- Easy installation and removal with the external hex drive design, compatible with standard tools for efficient maintenance.
- Wide compatibility with coarse UNC threading, ideal for quick assembly in various industrial materials.
- Compliance with rigorous industry standards including SAE J429 and IFI 111, guaranteeing consistent quality and safety.
Professional Applications & Engineering Value
This Grade 5 hex head screw is engineered to address critical challenges in heavy-duty industrial environments, such as machinery assembly, construction frameworks, and automotive components. Its fully threaded UNC design with a Class 2A fit ensures tight, reliable connections that resist loosening from vibrations and dynamic loads. The flanged feature provides increased bearing surface, distributing clamp load effectively to prevent surface damage and reduce stress concentration. Made to meet SAE J429 standards, it offers consistent performance in applications requiring high tensile strength and corrosion resistance, supported by a Rockwell C22 hardness for extended service life. Ideal for industrial fastening solutions where safety and durability are paramount, this screw simplifies maintenance while upholding operational integrity.
Specification Summary & Compliance
This fastener adheres to precise dimensional tolerances, including a Class 2A thread fit for consistent engagement and UNC coarse threading (5/16"-18) for robust performance. It conforms to IFI 111 SAE J429 manufacturing specifications, ensuring mechanical properties and quality. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for hazardous substances.
