S-97768A353 5/16"-18 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel and Black Oxide finish, ideal for harsh industrial environments.
• Precise alignment and reduced wear due to the 3/8" shoulder diameter with tight tolerances for consistent component positioning.
• High-strength performance offering 70,000 psi tensile and 35,000 psi shear strength for demanding applications.
• Reliable thread engagement with Class 3A fit and 5/16"-18 UNC coarse threads ensuring secure fastening.
• Easy installation and removal using the hex drive and knurled head for improved grip and torque application.
• Enhanced durability with Rockwell B55 hardness, providing excellent wear resistance and long service life.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH for quality and environmental safety.

Professional Applications & Engineering Value

This shoulder screw is engineered to address critical alignment and durability challenges in industrial applications. Made from 18-8 Stainless Steel with a Black Oxide finish, it resists corrosion and extends service life in demanding conditions. The 3/8" shoulder diameter with precise tolerances ensures accurate component positioning, reducing misalignment and wear in machinery, pivots, and assemblies. Featuring 5/16"-18 UNC coarse threads and a Class 3A thread fit, it provides secure fastening with minimal risk of loosening under vibration. The hex drive and knurled head facilitate easy installation, making it ideal for high-stress environments where reliability and precision are paramount.

Specification Summary & Compliance

This shoulder screw adheres to Class 3A thread fit and UNC coarse thread standards, ensuring dimensional accuracy and reliable performance. It meets ASME B18.3 specifications for manufacturing consistency and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental and safety standards.