S-91306A277 10-32 x 1 1/2" ASTM F835 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 120,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• Superior corrosion resistance from zinc plating protects against rust and environmental degradation, extending service life in demanding conditions.
• Precision Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies, minimizing loosening over time.
• Full threading design allows for maximum engagement along the entire length, enhancing grip and load distribution in connected materials.
• Convenient 1/8" hex drive enables quick and easy installation with standard tools, speeding up assembly processes.
• Durable alloy steel construction with Rockwell C39 hardness offers excellent wear resistance and durability under repeated use.
• Compliance with major standards including ASME B18.3 and ASTM F835 ensures consistent quality and interoperability in professional settings.

Professional Applications & Engineering Value

These 10-32 UNF Class 3A zinc-plated alloy steel rounded head screws are engineered to address common challenges in industrial assembly, such as vibration-induced loosening and corrosion in harsh environments. The fine thread spacing and Class 3A thread fit provide superior holding power, making them ideal for precision machinery, automotive components, and electronic enclosures where reliability is critical. The zinc-plated surface not only resists corrosion but also ensures consistent performance in outdoor or humid conditions. With a rounded button head and 1/8" hex drive, they offer easy installation and a low-profile finish, reducing assembly time and improving aesthetics in visible applications. These screws deliver long-term value by minimizing maintenance needs and enhancing the structural integrity of your projects.

Specification Summary & Compliance

This product features a 10-32 UNF thread size with Class 3A fit for high precision, fine thread spacing, and right-hand thread direction. It complies with ASME B18.3 and ASTM F835 standards, ensuring dimensional accuracy and performance consistency. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for use in various industries.