S-97345A855 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 industrial environments and chemical exposure
• Precise component alignment ensured by the Class 3A thread fit and standard shoulder, minimizing assembly play and vibration
• High-strength performance delivering 70,000 psi tensile and 35,000 psi shear strength for demanding mechanical applications
• Secure, non-slip installation with the knurled head texture and 3/8" hex drive, allowing for high torque application
• Reliable coarse threading using 5/8"-11 UNC for faster assembly and reduced cross-threading risk in heavy-duty uses
• Dimensional stability with tight shoulder diameter and length tolerances for consistent fit in precision machinery
• Compliance with major standards including ASME B18.3, RoHS 3, and REACH, ensuring quality and environmental safety

Professional Applications & Engineering Value

This 5/8"-11 UNC shoulder screw in 316 Stainless Steel is engineered to address critical challenges in industrial applications where alignment, corrosion, and load capacity are paramount. The socket head with hex drive and knurled texture provides superior grip during installation, preventing tool slippage in high-torque scenarios. Its Class 3A thread fit and precisely machined shoulder ensure minimal radial play, making it ideal for pivots, rotating shafts, and locating components in machinery, automotive assemblies, and food processing equipment. The corrosion-resistant material withstands aggressive environments, while the coarse UNC thread facilitates quick assembly and disassembly, reducing maintenance downtime and enhancing operational efficiency in heavy-duty settings.

Specification Summary & Compliance

This shoulder screw adheres to Class 3A thread tolerances for precision fit and is manufactured in compliance with ASME B18.3 specifications. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, ensuring environmental and safety standards. Key dimensional attributes include a shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005", guaranteeing consistent performance in precision engineering applications.