S-91255A162 8-32 x 1/8" ASTM F835 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with black-oxide coating, ideal for harsh industrial environments
• Superior tensile strength of 120,000 psi ensures reliable performance under high-stress conditions
• Rockwell C39 hardness provides excellent wear resistance and long service life
• Class 3A thread fit delivers precise, secure fastening with minimal play
• Fully threaded design maximizes grip and holding power across the entire length
• 3/32" hex drive allows for easy installation with standard tools while preventing stripping
• Compliance with major standards including ASME B18.3 and ASTM F835 ensures quality and reliability

Professional Applications & Engineering Value

These 8-32 UNC thread screws with black-oxide alloy steel construction are engineered to solve critical fastening challenges in demanding industrial applications. The coarse thread spacing and fully threaded design provide superior holding power in materials where vibration resistance is crucial, such as machinery assemblies, automotive components, and electrical enclosures. The rounded head style with 3/32" hex drive offers a low-profile solution that prevents snagging while ensuring secure tool engagement. This combination of high tensile strength and corrosion-resistant coating makes these screws ideal for applications requiring both durability and environmental compliance, reducing maintenance frequency and total cost of ownership.

Specification Summary & Compliance

These screws feature precision Class 3A thread fit with UNC coarse thread spacing for optimal engagement. Manufacturing follows ASME B18.3 and ASTM F835 specifications, ensuring dimensional accuracy and performance consistency. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making them suitable for global industrial applications with strict chemical substance restrictions.