S-94239A116 3/8"-16 x 1 1/2" SAE J429 High-Strength Grade 8 Steel Serrated-Flange Hex Head Screws
High-Strength Grade 8 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 strength and durability with Grade 8 classification, 150,000 psi tensile strength, and Rockwell C33 hardness for reliable performance in demanding applications.
- Superior corrosion resistance provided by the zinc-plated steel construction, extending service life in harsh industrial environments.
- Secure, vibration-resistant fastening thanks to the serrated locking flange, which helps prevent loosening under dynamic loads.
- Easy installation and high torque capability with the external hex drive and 9/16" head width, compatible with standard tools.
- Wide material grip and coarse threading via the 3/8"-16 UNC thread and full threading, enabling quick assembly and strong holding power.
- Precise, reliable thread engagement ensured by Class 2A thread fit, reducing the risk of cross-threading and ensuring consistent performance.
- Compliance with major industry standards including IFI 111 and SAE J429, guaranteeing quality and interoperability for professional use.
Professional Applications & Engineering Value
This Grade 8 hex head screw is engineered to address critical challenges in heavy machinery, construction, and automotive assemblies where vibration resistance and high tensile strength are paramount. The zinc-plated steel material combats corrosion, while the serrated flange provides a locking feature that minimizes loosening in dynamic environments. With a coarse UNC thread and full threading, it offers rapid installation and robust clamping force, ideal for structural connections. Its external hex drive allows for high-torque application, ensuring secure fastening in industrial applications that demand reliability under stress, reducing maintenance needs and enhancing operational safety.
Specification Summary & Compliance
This screw features a 3/8"-16 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy. It is manufactured to meet IFI 111 and SAE J429 specifications, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental standards for global industrial use.
