S-90429A113 0-80 x 3/4" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional durability and corrosion resistance with Black-Oxide finish on Alloy Steel, ideal for harsh industrial environments.
• Superior tensile strength of 130,000 psi ensures reliable performance under high-stress conditions without failure.
• Precise Class 3A thread fit guarantees tight, secure connections, reducing the risk of loosening in critical assemblies.
• Hex drive compatibility (0.035") allows for easy installation and removal with standard tools, improving assembly efficiency.
• 82° countersink angle and standard flat head profile provide a flush, low-profile finish, enhancing aesthetics and safety.
• Fine UNF threading (0-80) offers excellent holding power in materials where coarse threads may not be suitable.
• Compliance with ASME B18.3, ASTM F835, RoHS 3, and REACH ensures adherence to industry standards and environmental regulations for global use.

Professional Applications & Engineering Value

This 0-80 UNF flat head screw in Black-Oxide Alloy Steel is engineered to address common industrial challenges, such as vibration-induced loosening and corrosion in demanding applications. The fine thread design and Class 3A fit provide superior grip in precision assemblies, from electronics to machinery, minimizing the need for frequent maintenance. With a Rockwell C39 hardness and 130,000 psi tensile strength, it withstands heavy loads without stripping or breaking. The hex drive and 82° countersink angle ensure easy installation and a seamless finish, reducing assembly time and improving product integrity in industrial screw applications.

Specification Summary & Compliance

This screw features precise dimensions, including a 0-80 UNF thread size with Class 3A fit for tight tolerances, a length of 3/4", and partial threading. It meets ASME B18.3 and ASTM F835 standards for consistency and reliability. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it is free from hazardous substances and suitable for global industrial use.