S-91306A356 10-32 x 1/2" 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
- Superior corrosion resistance with zinc-plated alloy steel construction, ensuring long-lasting performance in harsh industrial environments.
- High tensile strength of 120,000 psi provides reliable fastening under heavy loads, reducing the risk of failure in critical applications.
- Precise Class 3A thread fit offers excellent engagement and vibration resistance, minimizing loosening in dynamic assemblies.
- Convenient hex drive (1/8") allows for easy installation and removal with standard tools, speeding up assembly processes.
- Fully threaded UNF fine spacing design ensures maximum grip and uniform stress distribution, enhancing joint integrity.
- Hardness of Rockwell C39 delivers exceptional wear resistance, maintaining thread integrity over repeated use.
- Compliance with ASME B18.3 and ASTM F835 guarantees consistent quality and interoperability in professional settings.
Professional Applications & Engineering Value
These 10-32 UNF zinc-plated alloy steel rounded head screws are engineered to address common industrial challenges such as vibration-induced loosening and corrosion. The fine thread spacing and Class 3A thread fit provide superior holding power in precision equipment, automotive assemblies, and machinery where alignment and stability are critical. The zinc plating offers a protective barrier against moisture and chemicals, extending service life in demanding environments. With a rounded button head profile and hex drive, they facilitate quick installation in confined spaces, reducing assembly time while ensuring reliable performance in applications requiring high tensile strength and durability.
Specification Summary & Compliance
This product adheres to Class 3A thread tolerance for precise fit, manufactured according to UNF thread standards with fine spacing. It meets ASME B18.3 and ASTM F835 specifications for dimensional accuracy and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are upheld for industrial use.
