S-94239A115 3/8"-16 x 1 1/4" 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 load-bearing capability with 150,000 psi tensile strength and Grade 8 classification, ideal for high-stress industrial environments.
- Superior corrosion resistance through zinc-plated steel construction, extending service life in demanding conditions.
- Enhanced vibration resistance with serrated locking features under the flange, preventing loosening in dynamic applications.
- Easy installation and removal using standard external hex drive tools, reducing assembly time and labor costs.
- Reliable thread engagement with UNC coarse threads and Class 2A fit, ensuring consistent performance in various materials.
- Increased clamping area from the integrated flange, distributing load evenly and reducing surface damage.
- Full compliance with industry standards including IFI 111 and SAE J429, guaranteeing interchangeability and quality assurance.
Professional Applications & Engineering Value
Engineered for heavy-duty applications, this Grade 8 hex head screw addresses critical challenges in construction, machinery assembly, and structural frameworks where vibration resistance and high tensile strength are paramount. The zinc-plated steel material provides a durable barrier against corrosion, while the fully threaded design and coarse UNC threads facilitate rapid installation in thick materials or pre-tapped holes. The external hex drive and flanged design simplify tool access and enhance grip, reducing the risk of stripping during torque application. These features make it an optimal choice for industrial fastening scenarios requiring long-term reliability under extreme mechanical stress.
Specification Summary & Compliance
This fastener adheres to Class 2A thread fit tolerances and UNC coarse thread standards, ensuring precise dimensional accuracy. It meets IFI 111 and SAE J429 specifications for mechanical properties and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial use without hazardous substances.
