S-92949A355 5/8"-11 x 1 3/4" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel and passivated finish, ideal for harsh industrial environments
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable, long-term fastening
• Precise thread engagement with Class 3A fit and UNC coarse threads, ensuring secure installations and reduced cross-threading risks
• Easy installation and removal thanks to the 3/8" hex drive and rounded button head design, compatible with standard tools
• Full threading along the 1 3/4" length provides consistent grip and load distribution across applications
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, guaranteeing safety and regulatory adherence
• Durable performance in heavy-duty settings with right-hand coarse threads designed for high-stress assembly needs

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 5/8"-11 UNC rounded head hex screws deliver reliable performance where vibration resistance and structural integrity are critical. The 18-8 stainless steel material, combined with a passivated finish, significantly enhances corrosion resistance, making them suitable for outdoor machinery, chemical processing equipment, and marine environments. The coarse thread spacing and Class 3A thread fit ensure quick assembly with minimal risk of stripping, while the fully threaded design and 70,000 psi tensile strength provide uniform stress distribution, reducing the likelihood of joint failure. Ideal for construction, automotive, and heavy equipment sectors, these screws address common challenges like fastener loosening and material degradation, offering a robust solution for industrial fastening that meets rigorous engineering standards.

Specification Summary & Compliance

This screw adheres to precise dimensional tolerances, including Class 3A thread fit and UNC coarse thread specifications with a diameter of 0.625". Manufactured in accordance with ASME B18.3 standards, it ensures consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in various industries without hazardous substances.