S-98164A321 3/8"-16 x 3" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 316 stainless steel construction, ideal for harsh environments like marine or chemical processing
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
• Precise Class 3A thread fit provides excellent engagement and reduces the risk of cross-threading during assembly
• Passivated finish enhances surface durability and extends service life by preventing oxidation
• Hex drive compatibility (7/32") allows for easy installation and removal with standard tools, minimizing downtime
• Fully threaded design offers consistent clamping force along the entire 3" length for secure fastening
• Compliance with ASME B18.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards are met

Professional Applications & Engineering Value

This 3/8"-16 UNC fully threaded rounded head screw in 316 stainless steel addresses critical challenges in industrial settings where corrosion and mechanical stress are prevalent. The passivated finish provides an extra layer of protection against aggressive chemicals and moisture, making it suitable for applications in marine equipment, food processing machinery, and chemical plants. Its Class 3A thread fit ensures tight tolerances and reliable performance in high-vibration environments, reducing maintenance needs. With a hex drive for efficient installation, this screw streamlines assembly processes while meeting ASME B18.3 standards for consistent quality and interoperability in heavy-duty fastening systems.

Specification Summary & Compliance

This screw features a 3/8"-16 UNC coarse thread with Class 3A fit for precise dimensional accuracy, manufactured in accordance with ASME B18.3 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are adhered to.