S-91253A147 6-32 x 7/16" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 130,000 psi ensures reliable fastening under high-stress conditions, reducing the risk of failure in demanding applications.
• Class 3A thread fit provides superior precision and tighter tolerances for secure, vibration-resistant assemblies in industrial machinery.
• Black-oxide coating on alloy steel offers enhanced corrosion resistance and durability, extending service life in harsh environments.
• Fully threaded design with UNC coarse threads allows for quicker installation and stronger grip in materials like metal or plastic.
• Hex drive (5/64") and flat head profile enable easy, flush mounting with standard tools, minimizing protrusion and improving aesthetics.
• Rockwell C39 hardness ensures high wear resistance, maintaining thread integrity through repeated use and adjustments.
• Compliance with ASTM F835, RoHS 3, and REACH guarantees adherence to industry standards and environmental safety, ideal for regulated sectors.

Professional Applications & Engineering Value

This 6-32 UNC flat head screw is engineered to address common industrial challenges such as vibration loosening and material fatigue. Made from black-oxide alloy steel, it combines high tensile strength with corrosion resistance, making it suitable for applications in automotive assemblies, electronic enclosures, and machinery where durability is critical. The coarse thread and full threading provide excellent holding power in softer materials, while the hex drive ensures efficient installation with standard tools. By meeting ASTM F835 specifications, it delivers consistent performance in high-stress environments, reducing maintenance needs and enhancing operational reliability for B2B clients.

Specification Summary & Compliance

This screw features precise Class 3A thread fit with UNC coarse threads, ensuring tight tolerances for secure fastening. Dimensions include a 7/16" length, 0.307" head diameter, and 82° countersink angle. It complies with ASTM F835 for mechanical properties, RoHS 3 (2015/863/EU) for restricted substances, and REACH (EC 1907/2006) for chemical safety, supporting use in regulated industrial and electronic applications.