S-97345A561 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial and marine environments.
• Precise component alignment ensured by the 1-1/2" shoulder length with tight tolerances for reliable assembly.
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for demanding applications.
• Secure, non-slip installation provided by the knurled head and hex socket drive for efficient torque transfer.
• Interchangeable fit and reliable threading with 10-24 UNC Class 3A threads, ensuring compatibility and vibration resistance.
• Enhanced durability with a Rockwell B79 hardness, maintaining integrity under repeated use.
• Global regulatory compliance meeting ASME B18.3, RoHS 3, and REACH standards for safe, sustainable use.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical alignment and strength challenges in precision machinery. Its 1-1/2" shoulder length provides a stable pivot or spacer, minimizing misalignment in assemblies like rotating shafts, bearings, and linkages. The 10-24 UNC Class 3A thread and hex socket drive ensure quick, secure fastening in tight spaces, reducing assembly time while resisting loosening under vibration. With high tensile and shear strength, it supports heavy loads in automotive, aerospace, and industrial equipment, while the knurled head enhances grip during manual adjustments. Its corrosion-resistant material makes it suitable for washdown or outdoor applications, delivering long-term reliability and reduced maintenance costs.

Specification Summary & Compliance

This shoulder screw adheres to Class 3A thread fit for precise engagement and UNC coarse threading for efficient installation. Shoulder dimensions include a diameter of 1/4" with a tolerance of -0.004" to -0.002" and a length of 1-1/2" with a tolerance of -0.005" to 0.005", ensuring consistent performance. It meets ASME B18.3 specifications for dimensional accuracy and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material integrity.