S-94496A310 3/8"-16 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional Load Distribution: The 1/2" shoulder diameter provides a precise bearing surface, minimizing wear and misalignment in assemblies.
• High-Strength Fastening: With a tensile strength of 70,000 psi and shear strength of 35,000 psi, this screw ensures reliable performance under heavy loads.
• Superior Corrosion Resistance: The zinc plating finish offers excellent protection against rust, extending the component's service life in harsh environments.
• Optimized for Easy Installation: The external hex drive and smooth hex head allow for high-torque application with standard tools, speeding up assembly.
• Precision Thread Engagement: The 3/8"-16 UNC coarse thread with Class 2A fit ensures quick, secure fastening and reduces cross-threading risks.
• Enhanced Durability: A Rockwell B80 hardness rating provides excellent resistance to deformation under stress.
• Regulatory Compliance Assurance: Meets RoHS 3 and REACH standards, ensuring suitability for global markets and environmentally conscious manufacturing.

Professional Applications & Engineering Value

This 3/8"-16 UNC shoulder screw is engineered to address critical alignment and pivot point challenges in industrial machinery. The steel construction and zinc plating deliver a robust, corrosion-resistant solution ideal for applications like rotating assemblies, linkages, and precision guides where the unthreaded shoulder acts as a shaft or bearing surface. Its 1/2" shoulder diameter and 1-5/8" shoulder length provide a stable, precise fit, reducing component wear and maintaining operational accuracy. The external hex drive and coarse thread facilitate quick installation and high clamp force, making it a reliable choice for heavy-duty equipment, automotive jigs, and conveyor systems that demand repeatable, secure fastening under dynamic loads.

Specification Summary & Compliance

This shoulder screw features a Class 2A thread fit for standard clearance and easy assembly, with a shoulder diameter tolerance of -0.004" to 0" and shoulder length tolerance of -0.005" to 0.005" ensuring dimensional precision. It conforms to UNC thread standards and is manufactured to meet RoHS 3 (2015/863/EU) with exemption 6(a) and REACH (EC 1907/2006) compliance, affirming its suitability for regulated industrial applications.