S-92210A629 3/8"-16 x 1 5/8" ASME B18.3, ASTM F879 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel and passivated finish, ideal for harsh environments and long-term reliability.
• Exceptional tensile strength of 70,000 psi ensures secure, vibration-resistant fastening in demanding applications.
• Precise Class 3A thread fit guarantees smooth assembly, reduces cross-threading risk, and improves joint integrity.
• Fully threaded design provides maximum grip and load distribution along the entire length for enhanced holding power.
• Standard 82° countersink angle and flat head allows for a flush, clean finish, preventing snagging and improving safety.
• Hex drive (7/32") offers high torque capability and easy installation with common tools, reducing assembly time.
• Compliance with ASME B18.3, RoHS 3, and REACH ensures product consistency, safety, and environmental responsibility for global supply chains.

Professional Applications & Engineering Value

This 3/8"-16 UNC flat head screw is engineered to address critical challenges in industrial settings where corrosion resistance and structural integrity are paramount. The 18-8 stainless steel material, combined with a passivated finish, provides excellent protection against rust and chemical exposure, making it ideal for machinery, marine equipment, and outdoor structures. Its coarse UNC thread and Class 3A fit ensure quick, reliable installation in various substrates, reducing the risk of thread stripping. The fully threaded design and high tensile strength (70,000 psi) offer consistent clamping force, preventing loosening under dynamic loads. Commonly used in assembly lines, construction, and automotive applications, this screw delivers dependable performance, minimizing maintenance and downtime in heavy-duty fastening scenarios.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including Class 3A thread fit for superior accuracy and UNC coarse thread specifications. It is manufactured in compliance with ASME B18.3 for consistent quality and performance. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and environmentally safe for industrial use.