S-97345A624 5/16"-18 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh industrial environments
• Precise component alignment ensured by the 1" shoulder with tight diameter and length tolerances
• High-strength performance with 70,000 psi tensile and 35,000 psi shear strength for demanding applications
• Secure, high-precision threading provided by the Class 3A fit 5/16"-18 UNC coarse thread
• Easy installation and removal with the hex socket drive and knurled head for improved grip
• Guaranteed reliability and interchangeability through compliance with the ASME B18.3 standard
• Safe for regulated industries with full RoHS 3 and REACH compliance

Professional Applications & Engineering Value

This 316 Stainless Steel shoulder screw is engineered to solve critical alignment and durability challenges in industrial applications. The 1" shoulder length provides a precise bearing surface for rotating components like gears, pulleys, and linkages, preventing axial movement and reducing wear. The Class 3A thread fit on the 5/16"-18 UNC coarse thread ensures a secure, vibration-resistant connection that maintains integrity under load. The combination of high tensile strength and excellent corrosion resistance makes it ideal for machinery, automotive assemblies, and food processing equipment where reliability and longevity are paramount. The hex socket drive and knurled head facilitate installation in confined spaces, enhancing assembly efficiency.

Specification Summary & Compliance

This shoulder screw features a 5/16"-18 UNC coarse thread with a Class 3A fit for high precision. The shoulder has a diameter of 3/8" with a tolerance of -0.004" to -0.002" and a length of 1" with a tolerance of -0.005" to 0.005". It is manufactured to meet ASME B18.3 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.