S-91263A520 6-32 x 1" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional Tensile Strength – With 130,000 psi tensile strength, these screws provide reliable, high-load fastening for demanding industrial applications.
• Superior Corrosion Resistance – The zinc-plated alloy steel construction offers excellent protection against rust and wear, extending service life in harsh environments.
• Precision Thread Fit – Class 3A UNC coarse threading ensures easy, secure installation and superior vibration resistance, reducing the risk of loosening.
• Optimized Head Design – The standard 82° flat head profile and 5/64" hex drive allow for flush mounting and straightforward installation with common tools.
• Enhanced Durability – Rockwell C39 hardness provides excellent resistance to deformation and stripping, maintaining fastener integrity under stress.
• Full Thread Engagement – Fully threaded design maximizes grip and load distribution across the entire length for stronger assemblies.
• Regulatory Compliance – Meets ASTM F835, RoHS 3, and REACH standards, ensuring safety and environmental responsibility in global supply chains.

Professional Applications & Engineering Value

This 6-32 flat head screw is engineered to solve critical fastening challenges in industrial machinery, electronics, and metal fabrication. The zinc-plated alloy steel material provides robust corrosion resistance, essential for equipment exposed to moisture or chemicals. Its UNC coarse threading and Class 3A fit deliver superior holding power and ease of installation, reducing assembly time and preventing thread damage. The flat head with 82° countersink ensures a smooth, flush finish, ideal for applications where protrusion is not acceptable. With fully threaded design and high tensile strength, it reliably secures components in high-vibration environments, minimizing maintenance needs and enhancing operational safety.

Specification Summary & Compliance

This fastener adheres to precise dimensional standards, including UNC thread with Class 3A fit for tight tolerance and reliable performance. Manufacturing follows ASTM F835 specifications, ensuring consistent quality and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and suitable for use in regulated industries worldwide.