S-8077A548 5/8"-11 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction and Black Oxide finish, ideal for harsh industrial environments
• Exceptional load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength for heavy-duty applications
• Precise alignment and positioning thanks to the knurled head and Class 3A thread fit ensuring secure, vibration-resistant connections
• Enhanced durability and wear resistance with Rockwell B79 hardness for long-term reliability under stress
• Easy installation and removal using a standard 3/8" hex drive socket head, reducing assembly time and tool wear
• Reliable performance in demanding settings with coarse UNC threads and right-hand threading for quick, stable fastening
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility

Professional Applications & Engineering Value

This 5/8"-11 UNC shoulder screw is engineered to address critical challenges in heavy-duty industrial applications, such as machinery assembly, automotive systems, and precision equipment. The 316 Stainless Steel material, combined with a Black Oxide finish, provides excellent resistance to corrosion and oxidation, extending service life in humid or chemical-exposed environments. The hex socket head and knurled texture allow for secure tool engagement and anti-slip handling, reducing the risk of stripping during high-torque installations. With a Class 3A thread fit and coarse UNC threads, it ensures quick, accurate alignment and robust load distribution, minimizing downtime and maintenance costs. Ideal for applications requiring precision shoulder screws with high shear and tensile strength, this component delivers reliable performance in sectors like manufacturing, aerospace, and robotics, where durability and compliance with standards like ASME B18.3 are paramount.

Specification Summary & Compliance

This shoulder screw features precise dimensions, including a thread size of 5/8"-11 UNC with Class 3A thread fit for tight tolerances, and shoulder diameter and length tolerances within -0.004" to -0.002" and -0.005" to 0.005", respectively. It adheres to ASME B18.3 manufacturing standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for industrial use.