S-91306A296 3/8"-24 x 3/4" ASTM F835 Steel Button Head Hex-Drive Screws
Steel Button Head Hex-Drive 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 corrosion resistance with zinc plating, ensuring long-term durability in harsh industrial environments.
- Superior tensile strength of 120,000 psi provides reliable performance for heavy-duty and high-stress applications.
- Precision Class 3A thread fit guarantees secure, vibration-resistant connections with minimal risk of loosening.
- Fully threaded UNF fine spacing design offers enhanced grip and load distribution for critical assemblies.
- Hex drive (7/32") compatibility allows for easy installation and removal with standard tools, reducing assembly time.
- High hardness (Rockwell C39) ensures excellent wear resistance and maintains thread integrity under repeated use.
- Compliance with ASME B18.3 and ASTM F835 standards assures consistent quality and interchangeability in professional settings.
Professional Applications & Engineering Value
This zinc-plated alloy steel rounded head screw is engineered to address common industrial challenges such as vibration-induced loosening and environmental corrosion. The UNF fine thread spacing and Class 3A fit provide superior clamping force and precision in machinery, automotive, and aerospace assemblies where reliability is critical. The combination of high tensile strength and Rockwell C39 hardness ensures that the fastener maintains integrity under dynamic loads, reducing maintenance needs and downtime. Ideal for applications requiring secure, fine-threaded connections with easy hex drive installation, this screw delivers consistent performance in demanding environments while meeting rigorous industry standards.
Specification Summary & Compliance
This product adheres to precise dimensional tolerances with a Class 3A thread fit and UNF thread standard, manufactured in compliance with ASME B18.3 and ASTM F835 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability for industrial use.
