S-96640A176 5/16"-18 x 1" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh environments and reducing replacement frequency.
• High tensile strength of 80,000 psi ensures reliable fastening under significant mechanical stress, minimizing failure risks.
• Rockwell B80 hardness provides excellent durability and wear resistance for long-term performance in demanding applications.
• Fully threaded UNC coarse design with Class 2A fit offers quick installation and secure holding power in various materials.
• Standard 82° countersink angle and flat head allows for a flush, tamper-resistant finish, enhancing safety and aesthetics.
• Phillips No. 4 drive enables efficient torque application with common tools, speeding up assembly processes.
• Compliance with ASME B18.6.3, RoHS 3, and REACH ensures adherence to industry standards and environmental regulations for safe, global use.

Professional Applications & Engineering Value

This 5/16"-18 UNC flat head screw is engineered to address common industrial challenges such as vibration loosening and environmental degradation. Constructed from Black-Oxide 18-8 Stainless Steel, it resists rust and corrosion in moist or chemical-exposed settings, making it ideal for machinery, automotive assemblies, and outdoor equipment. The fully threaded coarse design and Class 2A thread fit provide superior grip and ease of installation in wood, metal, or plastic substrates, reducing assembly time and maintenance costs. Its high tensile strength and Phillips drive ensure dependable performance in high-stress applications, offering engineers a reliable solution for durable, compliant fastening needs.

Specification Summary & Compliance

This screw features precise Class 2A thread fit and adheres to UNC coarse thread standards for consistent performance. It meets ASME B18.6.3 manufacturing specifications, ensuring dimensional accuracy and reliability. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and suitable for environmentally conscious industrial use.