S-97345A131 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
• Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing performance
• Precise assembly and location enabled by the 3/16" diameter shoulder with controlled tolerances
• Secure, high-precision thread engagement from the Class 3A fit and 8-32 UNC coarse thread profile
• Easy installation and removal with the hex socket drive and knurled head for improved grip
• Extended service life due to Rockwell B79 hardness, resisting wear and deformation
• Compliance with global environmental standards including RoHS 3 and REACH for safe, responsible sourcing

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical needs in precision machinery and industrial assemblies. The 3/16" shoulder diameter provides an exact locating surface for components like gears, pulleys, and linkages, eliminating misalignment and reducing wear. The UNC coarse thread with Class 3A fit ensures rapid, secure fastening in high-vibration environments, while the hex socket drive and knurled head allow for efficient torque application in confined spaces. Its corrosion-resistant properties make it ideal for applications exposed to moisture, chemicals, or extreme temperatures, such as in food processing, marine, and chemical handling equipment, delivering long-term reliability and reduced maintenance.

Specification Summary & Compliance

This shoulder screw adheres to precise dimensional standards, including a Class 3A thread fit for tight tolerances and a shoulder diameter tolerance of -0.004" to -0.002". It conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of hazardous substances and suitable for global industrial use.