S-8077A547 5/8"-11 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance in heavy-duty applications.
• Precision thread fit with Class 3A tolerance ensuring secure, vibration-resistant connections and simplified assembly.
• Enhanced grip and handling from the knurled head texture, providing better torque application and reduced slippage.
• Optimized for high-stress applications featuring a robust shoulder design for precise component alignment and load bearing.
• Durable black oxide finish that reduces light reflection and provides added surface protection against wear.
• Broad compliance with ASME B18.3, RoHS 3, and REACH standards, ensuring quality and environmental safety for global use.

Professional Applications & Engineering Value

This 5/8"-11 UNC shoulder screw is engineered to address critical challenges in industrial assemblies requiring precise alignment and high load capacity. The 316 stainless steel material provides excellent resistance to corrosion and chemicals, making it suitable for marine, chemical processing, and outdoor equipment. The Class 3A thread fit and coarse thread spacing ensure quick, secure fastening in high-vibration environments, reducing the risk of loosening. The socket head with hex drive allows for easy installation in confined spaces, while the black oxide finish enhances durability and minimizes glare. Ideal for use in machinery, automotive, and aerospace components, this shoulder screw delivers reliable performance and long-term value by minimizing maintenance and downtime.

Specification Summary & Compliance

This shoulder screw adheres to ASME B18.3 specifications, with precise dimensions including a thread size of 5/8"-11 UNC, Class 3A thread fit, and shoulder diameter tolerance of -0.004" to -0.002". It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. The manufacturing standards guarantee consistent quality, with a hardness of Rockwell B79 and mechanical properties including 70,000 psi tensile strength and 35,000 psi minimum shear strength, supporting reliable use in demanding industrial applications.