S-91253A204 8-32 x 1 1/2" ASTM F835 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive Flat 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 tensile strength of 130,000 psi ensures reliable performance in demanding applications, reducing the risk of fastener failure.
- Class 3A thread fit provides superior precision and tighter tolerances for secure, vibration-resistant assemblies.
- Black-oxide finish on alloy steel offers enhanced corrosion resistance, prolonging service life in harsh industrial environments.
- 82° countersink angle with standard flat head allows for a flush, low-profile installation, improving aesthetics and safety.
- Hex drive design enables high-torque installation and easy removal, speeding up assembly and maintenance processes.
- Partial threading provides optimal grip and clamping force, ideal for materials where full threading isn't required.
- Compliance with ASTM F835, RoHS, and REACH guarantees material quality and environmental safety for global supply chains.
Professional Applications & Engineering Value
These 8-32 UNC flat head screws are engineered to address critical challenges in industrial assembly, such as vibration loosening and material fatigue. The Black-Oxide alloy steel construction, combined with a Rockwell C39 hardness, ensures durability under high-stress conditions, making them suitable for machinery, automotive, and heavy equipment applications. The coarse thread spacing and Class 3A fit provide quick installation and reliable holding power, reducing assembly time while maintaining joint integrity. Their partial threading design is ideal for securing components without over-penetration, offering versatility in various material thicknesses. These screws deliver consistent performance, minimizing downtime and enhancing the longevity of your assemblies.
Specification Summary & Compliance
These screws feature precise Class 3A thread fit per UNC standards, ensuring tight tolerances for secure fastening. Manufactured in accordance with ASTM F835 specifications, they meet rigorous quality benchmarks. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for industrial use.
