S-91355A079 10-32 x 3/4" ASME B18.3, ASTM F835 Steel Flanged Button Head Hex-Drive Screws
Steel Flanged 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 tensile strength of 120,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- Superior thread precision with Class 3A fit provides tighter tolerances and improved vibration resistance, enhancing assembly security.
- Durable Black-Oxide finish on alloy steel offers excellent corrosion resistance, extending service life in harsh environments.
- Flanged rounded head design eliminates the need for separate washers, simplifying installation and providing a wider bearing surface.
- Hex drive compatibility allows for high-torque application with standard tools, ensuring efficient and secure fastening.
- Fine UNF threading delivers better adjustment control and higher load distribution compared to coarse threads.
- Full threading along the 3/4" length maximizes grip and engagement depth, suitable for a wide range of material thicknesses.
Professional Applications & Engineering Value
This 10-32 UNF Class 3A Rounded Head Screw is engineered to address critical challenges in industrial assembly and heavy-duty machinery. The Black-Oxide Alloy Steel construction, combined with a Rockwell C39 hardness, provides exceptional resistance to wear and environmental factors, reducing maintenance needs. The flanged button head design distributes clamping force evenly, preventing surface damage and loosening under vibration. With fine thread spacing and a hex drive, it ensures precise torque application and reliable performance in automotive, aerospace, and construction applications where high-strength fasteners are essential for safety and durability.
Specification Summary & Compliance
This screw features a 10-32 UNF fine thread with Class 3A tolerance for precise fit, manufactured in accordance with ASME B18.3 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and regulatory adherence for global industrial use.
