S-91253A194 8-32 x 1/2" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in harsh industrial environments.
• Exceptional tensile strength of 130,000 PSI for reliable performance in high-stress applications.
• Precise Class 3A thread fit ensures secure, vibration-resistant connections and reduces assembly issues.
• Fully threaded design provides maximum grip and uniform load distribution along the entire length.
• Standard 82° countersink angle allows for a flush, professional finish in countersunk holes.
• Hex drive (3/32") offers high torque transmission and reduces the risk of stripping during installation.
• Compliance with ASTM F835, RoHS 3, 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. Made from black-oxide alloy steel, they combine high Rockwell C39 hardness with excellent corrosion resistance, making them ideal for machinery, automotive, and electrical enclosures where durability is paramount. The coarse UNC threads and Class 3A fit provide quick installation and reliable holding power, reducing maintenance needs. Their fully threaded design and flat head profile ensure a secure, flush fit in pre-drilled holes, enhancing structural integrity and aesthetics in demanding applications.

Specification Summary & Compliance

This fastener meets precise dimensional standards, including UNC coarse threads with a Class 3A fit for tight tolerances and consistent performance. It is manufactured in accordance with ASTM F835 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for international industrial use.