S-91306A267 8-32 x 7/8" 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 tensile strength of 120,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
- Corrosion-resistant zinc plating on alloy steel provides enhanced durability and longevity in harsh industrial environments.
- Precise Class 3A thread fit guarantees secure, vibration-resistant connections, minimizing loosening over time.
- Hex drive design allows for easy installation and removal with standard tools, improving assembly efficiency.
- Fully threaded shank offers consistent gripping power along the entire length, ensuring uniform load distribution.
- High Rockwell C39 hardness maintains thread integrity and resistance to wear, extending service life.
- Compliance with ASME B18.3 and ASTM F835 standards assures quality and interoperability in professional applications.
Professional Applications & Engineering Value
These 8-32 UNC coarse thread screws are engineered to address common industrial challenges, such as vibration-induced loosening and corrosion in demanding environments. The zinc-plated alloy steel construction provides a robust barrier against moisture and chemicals, making them ideal for machinery, automotive assemblies, and electrical enclosures. The rounded button head design reduces surface protrusion, enhancing safety and aesthetics. With a right-hand thread direction and coarse threading, they offer quick installation and high pull-out resistance, ensuring reliable performance in industrial fastening applications where precision and durability are critical.
Specification Summary & Compliance
These screws feature a Class 3A thread fit for tight tolerances and superior engagement, adhering to UNC coarse thread standards. Manufactured in accordance with ASME B18.3 and ASTM F835 specifications, they ensure dimensional accuracy and performance reliability. Additionally, they are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible and safe usage in global markets.
