S-97345A796 3/8"-16 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh or chemical environments
• Exceptional mechanical strength with 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
• Precise alignment and smooth rotation ensured by the 2" shoulder length with tight diameter and length tolerances
• High-reliability thread engagement with Class 3A fit UNC coarse threads for secure fastening and vibration resistance
• Easy installation and removal using the 5/16" hex socket drive and knurled head for superior grip
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH for guaranteed quality and safety
• Durable, long-lasting performance with Rockwell B79 hardness, resisting wear and deformation under load

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to solve critical alignment and durability challenges in industrial machinery. The 2" shoulder length provides a precise bearing surface for rotating components like gears, pulleys, and linkages, eliminating the need for separate spacers and reducing assembly complexity. The UNC coarse threads and Class 3A thread fit ensure rapid assembly and high resistance to loosening under vibration, while the knurled socket head allows for secure tool engagement in tight spaces. With excellent corrosion resistance from its 316 stainless steel material, this ASME B18.3 compliant fastener delivers reliable performance in demanding applications such as automotive assemblies, food processing equipment, and marine environments, reducing maintenance downtime and extending service life.

Specification Summary & Compliance

This shoulder screw features a 3/8"-16 UNC thread with Class 3A fit for high precision. The shoulder has a diameter of 5/8" with a tolerance of -0.004" to -0.002" and a length of 2" with a tolerance of -0.005" to 0.005". Manufactured to ASME B18.3 specifications, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to international safety and environmental standards.