S-97345A907 3/4"-10 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 316 stainless steel construction, ideal for harsh environments and extended service life
• Exceptional mechanical strength with 70,000 psi tensile strength and 35,000 psi minimum shear strength for high-load applications
• Precise alignment and smooth rotation ensured by the Class 3A thread fit and standard shoulder fit for reduced wear
• Secure, non-slip installation with a knurled head and 1/2" hex socket drive for reliable torque transfer
• Optimized for demanding assemblies featuring a coarse 3/4"-10 UNC thread for quick engagement and robust holding power
• Consistent dimensional accuracy with tight shoulder diameter and length tolerances for repeatable performance
• Compliance with global standards including ASME B18.3, RoHS 3, and REACH for assured quality and safety

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and heavy-duty industrial equipment. The UNC coarse thread and Class 3A fit provide excellent vibration resistance and secure fastening in high-stress environments, minimizing the risk of loosening. The hex socket head with knurling ensures easy, slip-free installation even in confined spaces, while the precisely machined shoulder acts as a reliable pivot or spacer, reducing component wear and simplifying assembly. Its high tensile strength and corrosion-resistant properties make it ideal for applications in marine, chemical processing, and food-grade equipment, delivering long-term reliability and reduced maintenance costs.

Specification Summary & Compliance

This shoulder screw adheres to Class 3A thread fit and UNC thread standards for superior precision. Manufacturing conforms to ASME B18.3 specifications, with shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005". The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial suitability.