S-97345A868 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 alignment and reduced wear thanks to the Class 3A thread fit and standard shoulder fit, ensuring reliable assembly and longevity
• High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength, providing dependable performance under heavy loads
• Secure and easy installation with a knurled socket head and 3/8" hex drive, offering excellent grip and torque transmission
• Accurate component positioning due to the 3/4" shoulder diameter and 2 3/4" shoulder length with tight tolerances
• Wide compatibility with UNC coarse threads and right-hand direction, suitable for various machinery and equipment
• 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 industrial assembly, such as misalignment and component wear. Made from 316 stainless steel, it offers exceptional resistance to corrosion and high temperatures, making it ideal for applications in marine, chemical processing, and food machinery. The socket head with knurled texture and hex drive ensures secure fastening even in high-vibration environments, while the Class 3A thread fit and precise shoulder dimensions provide stable rotational support for pulleys, gears, and linkages. By minimizing play and enhancing durability, this shoulder screw reduces maintenance downtime and extends equipment life in demanding settings like automation systems and heavy-duty manufacturing.

Specification Summary & Compliance

This shoulder screw features a Class 3A thread fit with UNC coarse threads, ensuring high precision and interchangeability. Dimensions include a thread size of 5/8"-11, shoulder diameter of 3/4" (tolerance: -0.004" to -0.002"), and shoulder length of 2 3/4" (tolerance: -0.005" to 0.005"). It meets ASME B18.3 specifications for consistency and reliability, and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards without hazardous substances.